diff --git a/science/ADMS/Portfile b/science/ADMS/Portfile
index 0c43abc268e..9ff4a3b760f 100644
--- a/science/ADMS/Portfile
+++ b/science/ADMS/Portfile
@@ -4,6 +4,8 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        Qucs ADMS 2.3.7 release-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  861661c9e560d908161415d80556788b8d9c8b1a \
                     sha256  5d9c0d38386237a3e0c6fabd7e2b4e4b8cca8d855577a4de28aacc1a77cd426a \
                     size    184368
@@ -15,7 +17,7 @@ license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 
 description         ADMS is a code generator for the Verilog-AMS language
-long_description    ${description}
+long_description    {*}${description}
 
 use_autoconf        yes
 autoconf.cmd        ./bootstrap.sh
diff --git a/science/ALPSCore/Portfile b/science/ALPSCore/Portfile
index c4d75edee80..999e48c39d7 100644
--- a/science/ALPSCore/Portfile
+++ b/science/ALPSCore/Portfile
@@ -7,6 +7,8 @@ PortGroup           mpi 1.0
 PortGroup           boost 1.0
 
 github.setup        ALPSCore ALPSCore 2.2.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            13
 
 categories          science
diff --git a/science/ALPSMaxent/Portfile b/science/ALPSMaxent/Portfile
index 08b32f96c1f..a7bc1c7a691 100644
--- a/science/ALPSMaxent/Portfile
+++ b/science/ALPSMaxent/Portfile
@@ -8,6 +8,8 @@ PortGroup           boost 1.0
 name                ALPSMaxent
 
 github.setup        CQMP Maxent 1.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            18
 categories          science
 platforms           darwin
diff --git a/science/AppCSXCAD/Portfile b/science/AppCSXCAD/Portfile
index 74b8d8c469f..6f8cf5c2a54 100644
--- a/science/AppCSXCAD/Portfile
+++ b/science/AppCSXCAD/Portfile
@@ -8,6 +8,8 @@ PortGroup           active_variants 1.1
 PortGroup           app 1.0
 
 github.setup        thliebig AppCSXCAD 379ede4b8e00c11e8d0fb724c35547991b30c423
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20230106-[string range ${github.version} 0 7]
 checksums           rmd160  fa4359e0d7b6f77ae2162720a47dfe7d2586083c \
                     sha256  53b107889de36ef7655829988575c69342c52d164edf76f76ca76f0b04fd68aa \
@@ -20,7 +22,7 @@ license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 
 description         Minimal GUI Application using the QCSXCAD library
-long_description    ${description}
+long_description    {*}${description}
 
 compiler.cxx_standard 2011
 
diff --git a/science/CubicSDR/Portfile b/science/CubicSDR/Portfile
index 378a2013303..e2d9971b16c 100644
--- a/science/CubicSDR/Portfile
+++ b/science/CubicSDR/Portfile
@@ -18,6 +18,8 @@ long_description    CubicSDR is the software portion of Software Defined \
 homepage            https://www.cubicsdr.com
 
 github.setup        cjcliffe CubicSDR 071204f3928919949bab572bde5231e1dbd1cb29
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20230114-[string range ${github.version} 0 7]
 checksums           rmd160  0e9d4a1c34be596c3cef1bb1cc3701d852fd31d7 \
                     sha256  90001897218ab72bc109ea4e4a7cd8ea2063d0682b6abe610b8f58405cefb50b \
diff --git a/science/EGSimulation/Portfile b/science/EGSimulation/Portfile
index fa597cc5902..80d05361416 100644
--- a/science/EGSimulation/Portfile
+++ b/science/EGSimulation/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 PortGroup           python 1.0
 
 github.setup        tazzben EconScripts 1.2
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 name                EGSimulation
 revision            1
 categories          science
diff --git a/science/HDF5-External-Filter-Plugins/Portfile b/science/HDF5-External-Filter-Plugins/Portfile
index 85f8ca2112b..0698e3d16b2 100644
--- a/science/HDF5-External-Filter-Plugins/Portfile
+++ b/science/HDF5-External-Filter-Plugins/Portfile
@@ -6,13 +6,14 @@ PortGroup           github 1.0
 PortGroup           cmake 1.0
 
 github.setup        nexusformat HDF5-External-Filter-Plugins 0.1.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            11
 categories          science
-platforms           darwin
 license             BSD MIT
 maintainers         {@eborisch eborisch} openmaintainer
 description         Provides dynamically loadable (compression) filters for HDF5
-long_description    ${description}. Filters for bitshuffle, bzip2, and lz4 are \
+long_description    {*}${description}. Filters for bitshuffle, bzip2, and lz4 are \
                     included. See also \
                     http://www.hdfgroup.org/services/filters.html for \
                     more information.
diff --git a/science/HORTON/Portfile b/science/HORTON/Portfile
index 4513c0efec7..4ce063cbfab 100644
--- a/science/HORTON/Portfile
+++ b/science/HORTON/Portfile
@@ -6,17 +6,18 @@ PortGroup           github 1.0
 PortGroup           active_variants 1.1
 
 github.setup        theochem horton ea86b470ed0d6959ad404ebc2c69d20157834d4d
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             2.0.1
 revision            1
 name                HORTON
-platforms           darwin
 license             GPL-3+
 categories          science python
 maintainers         mcmaster.ca:yangx59 \
                     openmaintainer
 
 description         HORTON is a quantum chemistry program written primarily in Python language.
-long_description    ${description} It can serve as a stand-alone program for electronic structure calculation (HF, DFT,\Geminals, PT)
+long_description    {*}${description} It can serve as a stand-alone program for electronic structure calculation (HF, DFT,\Geminals, PT)
 
 
 homepage            https://theochem.github.io/horton/
diff --git a/science/NanoVNA-QT/Portfile b/science/NanoVNA-QT/Portfile
index cbe725553af..1045e964186 100644
--- a/science/NanoVNA-QT/Portfile
+++ b/science/NanoVNA-QT/Portfile
@@ -8,9 +8,11 @@ platforms           darwin macosx
 license             GPL-2
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         NanoVNA-QT is a Vector Network Analyzer software for the NanoVNA V2 hardware
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        nanovna NanoVNA-QT 20200507
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  c0b9eeb4f30223b5ff0542aa5a9a94a781581f3a \
                     sha256  f37ec74079842ecc8091cb353a21dfb0d813fc87c823bf38ffd0cc4fea6c3075 \
                     size    876518
@@ -25,7 +27,7 @@ compiler.cxx_standard 2011
 # autoconf and make
 subport libxavna {
     description        C and C++ library for accessing the NanoVNA V2 hardware
-    long_description   ${description}
+    long_description   {*}${description}
 
     patchfiles-append \
         calibration.c.patch \
diff --git a/science/NanoVNASaver/Portfile b/science/NanoVNASaver/Portfile
index 5ec873ba944..8aa5bc326ac 100644
--- a/science/NanoVNASaver/Portfile
+++ b/science/NanoVNASaver/Portfile
@@ -15,6 +15,8 @@ description         NanoVNASaver is a multiplatform tool to save Touchstone file
 long_description    {*}${description}
 
 github.setup        NanoVNA-Saver nanovna-saver 0.5.5 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  e33bdc9cd8e0e6c1908326ce9ade517ea8f874fc \
                     sha256  2897d87e320a7bf9945724b077a7a1928e022225934f0702a330e380fda1d30a \
                     size    527021
diff --git a/science/PothosAudio/Portfile b/science/PothosAudio/Portfile
index e4642efae90..8db78da87e8 100644
--- a/science/PothosAudio/Portfile
+++ b/science/PothosAudio/Portfile
@@ -11,9 +11,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Support for streaming audio devices in Pothos
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware PothosAudio 0.3.1 pothos-audio-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  9c9de97682c38d2c5cfb93c5603dd8c537add99f \
                     sha256  e697b361ad900668d3d84a22326893473408042a556c0060ea55e301af5848e4 \
                     size    9017
diff --git a/science/PothosBlocks/Portfile b/science/PothosBlocks/Portfile
index 7a5a0971979..f05a1206c92 100644
--- a/science/PothosBlocks/Portfile
+++ b/science/PothosBlocks/Portfile
@@ -16,6 +16,8 @@ long_description    The processing blocks found in this project offer \
     information to come as this project fills in.
 
 github.setup        pothosware PothosBlocks 0.5.3 pothos-blocks-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  1c165da5add5ada0a02cd2a62ef9c7c0fea68d40 \
                     sha256  c2ae2dad698220dd919a2cef01bcc1c2c9aad63c4088f48a64b6e1467147ad54 \
                     size    64524
diff --git a/science/PothosComms/Portfile b/science/PothosComms/Portfile
index 052c8866c57..76ca455a11f 100644
--- a/science/PothosComms/Portfile
+++ b/science/PothosComms/Portfile
@@ -17,6 +17,8 @@ long_description    This communications toolkits provides DSP and higher \
     synchronization, error correction, and MAC layer support.
 
 github.setup        pothosware PothosComms 0.3.5 pothos-comms-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  5d96996d7eb3bc7b8b0c41087e98a114f7822637 \
                     sha256  a3fa641e52d370e8881e9bf2081b26325e3201dfe392d427b08ab2d690fb1d1a \
                     size    96634
diff --git a/science/PothosCore/Portfile b/science/PothosCore/Portfile
index 294b33983c2..09b6f39071e 100644
--- a/science/PothosCore/Portfile
+++ b/science/PothosCore/Portfile
@@ -11,9 +11,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Pothos data-flow framework
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware PothosCore 0.7.1 pothos-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  1804f1bddf8bccddee029bc508d7a08184895315 \
                     sha256  4316f448bb5c1b6b0fad8c68e8bbcf45016464c00a941e6d79612decbfabbd2f \
                     size    270267
diff --git a/science/PothosFlow/Portfile b/science/PothosFlow/Portfile
index f35f6df243a..0410f1462f6 100644
--- a/science/PothosFlow/Portfile
+++ b/science/PothosFlow/Portfile
@@ -12,9 +12,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Pothos Flow is the GUI frontend and designer tool for the Pothos framework.
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware PothosFlow 0.7.1 pothos-flow-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  587a5662c8b92cdb3ad023ac24b9e27a12b7b97e \
                     sha256  21e332aba7adba1dcf45722d7c118e557a0fa149f3d01a34b9492a84f85ec63f \
                     size    661322
diff --git a/science/PothosLiquidDSP/Portfile b/science/PothosLiquidDSP/Portfile
index d49bce2e06d..1bfd919160a 100644
--- a/science/PothosLiquidDSP/Portfile
+++ b/science/PothosLiquidDSP/Portfile
@@ -15,6 +15,8 @@ long_description    This toolkit wraps Pothos blocks around the Liquid \
     and a file describing the available functions and parameters. \
 
 github.setup        pothosware PothosLiquidDSP bb0f8f8456426c3a99c448bfbacc52134f6f366c
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             0.0.0-git-20211220
 checksums           rmd160  87d6893e2d5b8689bd8783224c03d7ead6c497e9 \
                     sha256  74b90b071cd7a36f951a853b055a942d792a79216fd41a20c2b63ccf361783c7 \
diff --git a/science/PothosPlotters/Portfile b/science/PothosPlotters/Portfile
index 1b956329ae7..c2aa1a55b37 100644
--- a/science/PothosPlotters/Portfile
+++ b/science/PothosPlotters/Portfile
@@ -18,6 +18,8 @@ long_description    The plotters toolkit provides plotter widgets which \
     constellation plotter, and others
 
 github.setup        pothosware PothosPlotters 0.4.2 pothos-plotters-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  3b1f639eaf43ef2bdd5435dd413ca8e9f61643d9 \
                     sha256  db8bcd1d2d1c63ebb1925d0ccd30cb7b7266cd4064c9f9a4f675059b2a3cea84 \
                     size    68618
diff --git a/science/PothosSoapy/Portfile b/science/PothosSoapy/Portfile
index 994de704b28..c49238a25dd 100644
--- a/science/PothosSoapy/Portfile
+++ b/science/PothosSoapy/Portfile
@@ -11,9 +11,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         SDR source and sink blocks for interfacing SDR hardware with Pothos.
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware PothosSoapy 0.5.1 pothos-soapy-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  a8565f32466a3370fc0495a8ddd8d21d6aa4b935 \
                     sha256  81c8ec8beb1f9264f31bfc43ed4a1594c9c0d1b3be8ada2c2635f0735546c3be \
                     size    29567
diff --git a/science/PothosWidgets/Portfile b/science/PothosWidgets/Portfile
index a8bd9c9c2cf..be12f20b0d0 100644
--- a/science/PothosWidgets/Portfile
+++ b/science/PothosWidgets/Portfile
@@ -11,9 +11,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Graphical widgets to supplement the Pothos GUI
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware PothosWidgets 0.5.1 pothos-widgets-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  d5b36f85ff1825f6bd178c9c0a671a2dac67cd2b \
                     sha256  77fd92a434fefd29b977a4425d6284d6896faa522011d24118e705b5d89c77e1 \
                     size    19103
diff --git a/science/RigCtldGUI/Portfile b/science/RigCtldGUI/Portfile
index 71d722a7a44..9f625afcb47 100644
--- a/science/RigCtldGUI/Portfile
+++ b/science/RigCtldGUI/Portfile
@@ -14,9 +14,11 @@ platforms           darwin macosx
 license             GPL-2
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         a graphical user interface for rig control, offering also "rigctld" functionality
-long_description    RigCtldGUI is ${description}
+long_description    RigCtldGUI is {*}${description}
 
 github.setup        dl1ycf RigCtldGUI d49f88b94b64c9636e44da1867eab0461553e96e
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20220406-[string range ${github.version} 0 7]
 checksums           rmd160  b639bc162c54e274d1677346a87d36796e929ca1 \
                     sha256  c632fb071caaf6c4a18860058fd59423c3c1c9ea0038a3f8b02d04aaba79664e \
diff --git a/science/SDRPlusPlus/Portfile b/science/SDRPlusPlus/Portfile
index 32a2d5fe7c1..1e77180ae9c 100644
--- a/science/SDRPlusPlus/Portfile
+++ b/science/SDRPlusPlus/Portfile
@@ -13,11 +13,13 @@ maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 
 description         SDR++ is a cross-platform and open source SDR software with \
     the aim of being bloat free and simple to use.
-long_description    ${description}
+long_description    {*}${description}
 
 # the latest version doesn't have OPT_OVERRIDE_STD_FILESYSTEM
 # neede for macOS =< 10.14
 github.setup        AlexandreRouma SDRPlusPlus 1.0.4
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  9aa72b5f7c0c751bc9795161bb8e901b76b0773c \
                     sha256  0acff4557806c79afbea6e69620541701c4d3405a94716e651ec1bc9c0349c01 \
                     size    3700910
diff --git a/science/SDRangel/Portfile b/science/SDRangel/Portfile
index bc947198675..e5fa92af378 100644
--- a/science/SDRangel/Portfile
+++ b/science/SDRangel/Portfile
@@ -15,9 +15,11 @@ maintainers           {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description           SDRangel is an Open Source Qt5 / OpenGL 3.0+ SDR \
     and signal analyzer frontend to various hardware.
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup          f4exb sdrangel 7.13.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from   tarball
 checksums             rmd160  4125429eb915724c0662b1db2078eb3a58fd988e \
                       sha256  a8dd0ebcbf6e608382b9b46471e80baf5f5b73b2063c2e49502b6bb3fac5163b \
                       size    79627129
diff --git a/science/SoapyAirspy/Portfile b/science/SoapyAirspy/Portfile
index d7d5a6858b9..b4a1bb00af3 100644
--- a/science/SoapyAirspy/Portfile
+++ b/science/SoapyAirspy/Portfile
@@ -10,9 +10,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugin for Airspy
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyAirspy 0.2.0 soapy-airspy-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  e87f1ab58898d849d8ce3c3fa1ad312d91b52bda \
                     sha256  a1c792fbefa4cfe2eaf9189810bd0b1689fece949282250568a83af6741a1698 \
                     size    11029
diff --git a/science/SoapyAirspyHF/Portfile b/science/SoapyAirspyHF/Portfile
index 7752908fe95..c7d045a8ef9 100644
--- a/science/SoapyAirspyHF/Portfile
+++ b/science/SoapyAirspyHF/Portfile
@@ -10,9 +10,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugin for AirspyHF+
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyAirspyHF 0.2.0 soapy-airspyhf-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  e74a354c9f03eb831038fbdd77e56bb3be317034 \
                     sha256  78664b30f21557c4f75761e59610fe8a32e5400119ec03175a1225238ad05375 \
                     size    11469
diff --git a/science/SoapyAudio/Portfile b/science/SoapyAudio/Portfile
index 1a7633f6c22..16716f12a73 100644
--- a/science/SoapyAudio/Portfile
+++ b/science/SoapyAudio/Portfile
@@ -10,9 +10,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugin for Audio devices
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyAudio 0.1.1 soapy-audio-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  33abfd40e489471fcec1da2363bda51e0c900b87 \
                     sha256  0782c8a865e22cc253f534293782e48c5b23d6b79bf003fc0be4d3053f701902 \
                     size    93936
diff --git a/science/SoapyBladeRF/Portfile b/science/SoapyBladeRF/Portfile
index d618ed0deb7..1cac3cb5593 100644
--- a/science/SoapyBladeRF/Portfile
+++ b/science/SoapyBladeRF/Portfile
@@ -10,9 +10,11 @@ license             LGPL-2.1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugin for Blade RF
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyBladeRF 0.4.1 soapy-bladerf-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  763f4f31e8573ffd511e6e41464f9fa44bfd786e \
                     sha256  6b90befee4372ff0011445c471c348b18f1998ae0d5b833c0026f088031c8a72 \
                     size    29195
diff --git a/science/SoapyHackRF/Portfile b/science/SoapyHackRF/Portfile
index 497b314c0dd..d8cd2ad83ee 100644
--- a/science/SoapyHackRF/Portfile
+++ b/science/SoapyHackRF/Portfile
@@ -10,9 +10,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for Hack RF
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyHackRF 0.3.4 soapy-hackrf-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  09edfc9c61fe901d1911e7b01106e51f91cbcc09 \
                     sha256  4e8872adb8966a3ae41538518abd085fda2c9c29cf9070b51f1d79246c9b549c \
                     size    16474
diff --git a/science/SoapyPlutoSDR/Portfile b/science/SoapyPlutoSDR/Portfile
index 7393d9d2e6f..dd71251c1e3 100644
--- a/science/SoapyPlutoSDR/Portfile
+++ b/science/SoapyPlutoSDR/Portfile
@@ -10,9 +10,11 @@ license             LGPL-2.1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for Pluto SDR
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyPlutoSDR 0.2.1 soapy-plutosdr-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  35f093dfb08070d9db70f18920a4b8faf05f1ada \
                     sha256  6b4963ae991636afd77b052d97d93599daff606d8fd3947b4638576fb92624ae \
                     size    22762
diff --git a/science/SoapyRTLSDR/Portfile b/science/SoapyRTLSDR/Portfile
index 067a1dcdbc0..61f9d52917f 100644
--- a/science/SoapyRTLSDR/Portfile
+++ b/science/SoapyRTLSDR/Portfile
@@ -10,9 +10,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for RTL-SDR
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyRTLSDR 0.3.0 soapy-rtlsdr-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  88bb56f7842b9ce4de9f32fe1df0545c543a6724 \
                     sha256  5fe2841548af43011381ef3da3f75be134245ccc215c12b0fea7f900760ce98f \
                     size    14389
diff --git a/science/SoapyRedPitaya/Portfile b/science/SoapyRedPitaya/Portfile
index 218a78321be..fadcd2a1461 100644
--- a/science/SoapyRedPitaya/Portfile
+++ b/science/SoapyRedPitaya/Portfile
@@ -10,9 +10,11 @@ license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugins for Red Pitaya
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyRedPitaya 0.1.1 soapy-redpitaya-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  6d772ff767264d2f331c6fcdadf76aa31cab1e0e \
                     sha256  bb30dbe8170a131dd7650dfe745e37c872635313fab8849217acd57b667f9251 \
                     size    17901
diff --git a/science/SoapyRemote/Portfile b/science/SoapyRemote/Portfile
index cd222f38cf7..f7e82c5c5a2 100644
--- a/science/SoapyRemote/Portfile
+++ b/science/SoapyRemote/Portfile
@@ -10,9 +10,11 @@ license             Boost-1
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for use any Soapy SDR remotely
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyRemote 0.5.2 soapy-remote-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  1db0d3e8b91a23b3acad1a81cc906abf921fb133 \
                     sha256  e56e493d3079002ff09c36f70f7c3ad7c4f9c580da3e9db9836c8712cf5f89ab \
                     size    72926
diff --git a/science/SoapySDR/Portfile b/science/SoapySDR/Portfile
index abec83523c4..34c7dd1e942 100644
--- a/science/SoapySDR/Portfile
+++ b/science/SoapySDR/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 PortGroup           cmake 1.0
 
 github.setup        pothosware SoapySDR 0.8.1 soapy-sdr-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  c9488967b821f644b46df69c5d37c6888718ae56 \
                     sha256  cc1dc3878861270fd95f9226f87abe63eff1413f17a778b4236e8cfd016c1faa \
                     size    131245
diff --git a/science/SoapySDRPlay/Portfile b/science/SoapySDRPlay/Portfile
index 6663f7ef4ab..2430f294890 100644
--- a/science/SoapySDRPlay/Portfile
+++ b/science/SoapySDRPlay/Portfile
@@ -11,9 +11,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for SDRPlay
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapySDRPlay2 4bf80bc337f7ac4d1930645039f530cd81fce7c3
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20211121-[string range ${github.version} 0 7]
 checksums           rmd160  d9575f21949b28103b68086ca5ebebaf4a6445c2 \
                     sha256  85f772f0873516e6c3106fcec1bf45d3129d62c77fcf3fc66557bb668897b161 \
diff --git a/science/SoapySDRPlay3/Portfile b/science/SoapySDRPlay3/Portfile
index be662d2a785..7f7e64cf9ca 100644
--- a/science/SoapySDRPlay3/Portfile
+++ b/science/SoapySDRPlay3/Portfile
@@ -11,9 +11,11 @@ license             MIT
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR module for SDRPlay 3 driver
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapySDRPlay3 794425ff7d8cc153190d6545332df604731bab41
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20221130-[string range ${github.version} 0 7]
 checksums           rmd160  2e8c426be8e859e7d97296ba23052533116f99b2 \
                     sha256  b7346a60a1fbf845716698d31b9651ad5486684792518491b436dfe17e1ed887 \
diff --git a/science/SoapyUHD/Portfile b/science/SoapyUHD/Portfile
index 276367a1d3f..f0a34b93636 100644
--- a/science/SoapyUHD/Portfile
+++ b/science/SoapyUHD/Portfile
@@ -11,9 +11,11 @@ license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         Soapy SDR plugins for UHD devices
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        pothosware SoapyUHD 0.4.1 soapy-uhd-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160 61cb581f09ffd05d9dc0d80565145d1a8380ed80 \
                     sha256 3b5b49d1c71444ae824d2b1f074002d2bb1a5dcfeec34b2b8bc26e0cf28ce2ef \
                     size   33855
diff --git a/science/TwitterDemandAnalyzer/Portfile b/science/TwitterDemandAnalyzer/Portfile
index 0331b15fef0..74a3b31b152 100644
--- a/science/TwitterDemandAnalyzer/Portfile
+++ b/science/TwitterDemandAnalyzer/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 PortGroup           python 1.0
 
 github.setup        tazzben TwitterDemandAnalyzer 1.1
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 categories          science
 platforms           {darwin any}
 maintainers         ad.wsu.edu:tazz_ben
diff --git a/science/TwitterDemandCollector/Portfile b/science/TwitterDemandCollector/Portfile
index f52de6c2099..f45de05c82e 100644
--- a/science/TwitterDemandCollector/Portfile
+++ b/science/TwitterDemandCollector/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 PortGroup           python 1.0
 
 github.setup        tazzben TwitterDemandCollector 1.1
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 categories          science
 platforms           {darwin any}
 maintainers         ad.wsu.edu:tazz_ben
diff --git a/science/WW/Portfile b/science/WW/Portfile
index 3bf84708f71..5b150c3ce59 100644
--- a/science/WW/Portfile
+++ b/science/WW/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 PortGroup           python 1.0
 
 github.setup        tazzben WW 2.2
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            1
 
 categories          science education
diff --git a/science/aircraft_oap/Portfile b/science/aircraft_oap/Portfile
index dfe4aaa5222..1460482ba42 100644
--- a/science/aircraft_oap/Portfile
+++ b/science/aircraft_oap/Portfile
@@ -4,6 +4,8 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        NCAR aircraft_oap 3.1.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 # Note: The xpms2d executable appears to still be at version 3.0.2.
 
 revision            1
diff --git a/science/airspy/Portfile b/science/airspy/Portfile
index f5e37ac4542..e7b28772599 100644
--- a/science/airspy/Portfile
+++ b/science/airspy/Portfile
@@ -7,6 +7,8 @@ PortGroup           github 1.0
 name                airspy
 
 github.setup        airspy airspyone_host 41c439f16818d931c4d0f8a620413ea5131c0bd6
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20210912-[string range ${github.version} 0 7]
 checksums           rmd160  7f69ca2d8aa1a6d6123188632e2b200f2a53b5a0 \
                     sha256  bf66cc8ecf19c4cec5265385ef237acd54ed79d89eeea8396527c1e5ad1635aa \
@@ -18,9 +20,8 @@ homepage            http://www.airspy.com/
 categories          science comms
 maintainers         {michaelld @michaelld} openmaintainer
 description         Host software for AirSpy, a project to produce a low cost, open source software radio platform (SDR).
-long_description    ${description}
+long_description    {*}${description}
 license             MIT
-platforms           darwin
 
 depends_build-append port:pkgconfig
 depends_lib-append	path:lib/pkgconfig/libusb-1.0.pc:libusb
diff --git a/science/airspyhf/Portfile b/science/airspyhf/Portfile
index 33766d75c2a..25bf9526414 100644
--- a/science/airspyhf/Portfile
+++ b/science/airspyhf/Portfile
@@ -10,9 +10,11 @@ license             BSD
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 
 description         User mode driver for Airspy HF+
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        airspy airspyhf 1.6.8
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  e4f51c1a68cedc7d15f98831c97942be6d8aa73b \
                     sha256  834ad1649995e7f46b1adf62347529241fcfb87798ed3605eac96e4fa750f6cc \
                     size    33537
diff --git a/science/aptdec/Portfile b/science/aptdec/Portfile
index 979152fdd3b..2a18750ce61 100644
--- a/science/aptdec/Portfile
+++ b/science/aptdec/Portfile
@@ -8,9 +8,11 @@ categories          science comms
 license             GPL-2+
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         decodes images transmitted by NOAA weather satellites
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        srcejon aptdec 3e8297a912f89a3c42af0845b83a209a6cd13c55
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20220924-[string range ${github.version} 0 7]
 revision            0
 
diff --git a/science/bart/Portfile b/science/bart/Portfile
index 9b6326aee20..37e32d44de9 100644
--- a/science/bart/Portfile
+++ b/science/bart/Portfile
@@ -7,10 +7,11 @@ compilers.setup     -clang -fortran
 categories          science
 maintainers         {eborisch @eborisch} openmaintainer
 description         Toolbox for Computational Magnetic Resonance Imaging
-long_description    $description
+long_description    {*}$description
 github.setup        mrirecon bart 0.9.00 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            0
-platforms           darwin
 license             BSD
 checksums \
     rmd160  25e0cd84ec7cc61caacf0d9ec9f9fa0992d0ba69 \
diff --git a/science/bedtools/Portfile b/science/bedtools/Portfile
index 369e29284f1..a90b9890b9f 100644
--- a/science/bedtools/Portfile
+++ b/science/bedtools/Portfile
@@ -4,10 +4,11 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        arq5x bedtools2 2.31.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 
 name                bedtools
 categories          science
-platforms           darwin
 maintainers         {gmail.com:vandervelde.ag @arjanvandervelde} openmaintainer
 license             MIT
 
diff --git a/science/bfast/Portfile b/science/bfast/Portfile
index 7ad42e8d0c6..8d88baefba5 100644
--- a/science/bfast/Portfile
+++ b/science/bfast/Portfile
@@ -4,6 +4,8 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        nh13 BFAST 0.7.0a bfast.
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            0
 checksums           rmd160  95daa3e29c7c7d8156bd743a28f3bccfd9dc94f6 \
                     sha256  ed8de49693165a87d5dbef352207c424b1bf6f670a83acf49a4f4f188444995e \
diff --git a/science/bladeRF/Portfile b/science/bladeRF/Portfile
index 0716a87dce0..6acc8d3a2c3 100644
--- a/science/bladeRF/Portfile
+++ b/science/bladeRF/Portfile
@@ -11,6 +11,8 @@ legacysupport.newest_darwin_requires_legacy 10
 compiler.cxx_standard 2011
 
 github.setup        Nuand bladeRF 5a146b2a0f52e8ec17969579cee62b8ed16e429c
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20211028-[string range ${github.version} 0 7]
 revision            0
 
diff --git a/science/bowtie/Portfile b/science/bowtie/Portfile
index b558d50a1f4..3f2fa717a0b 100644
--- a/science/bowtie/Portfile
+++ b/science/bowtie/Portfile
@@ -4,6 +4,8 @@ PortSystem              1.0
 PortGroup               github 1.0
 
 github.setup            BenLangmead bowtie 1.3.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from     tarball
 revision                0
 categories              science biology
 maintainers             {mcalhoun @MarcusCalhoun-Lopez} openmaintainer
@@ -11,7 +13,7 @@ license                 Artistic-1 LGPL-3+
 
 description             an ultrafast, memory-efficient short read aligner
 
-long_description        Bowtie is ${description}. It aligns short DNA sequences \
+long_description        Bowtie is {*}${description}. It aligns short DNA sequences \
                         (reads) to the human genome at a rate of over 25 million \
                         35-bp reads per hour. Bowtie indexes the genome with \
                         a Burrows-Wheeler index to keep its memory footprint small: \
diff --git a/science/bowtie2/Portfile b/science/bowtie2/Portfile
index f9a7847eccf..4a4ea60f726 100644
--- a/science/bowtie2/Portfile
+++ b/science/bowtie2/Portfile
@@ -5,6 +5,8 @@ PortGroup                   github      1.0
 PortGroup                   makefile    1.0
 
 github.setup                BenLangmead bowtie2 2.5.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from         tarball
 revision                    0
 
 categories                  science biology
diff --git a/science/cgnslib/Portfile b/science/cgnslib/Portfile
index a11875bbac6..1639a002a55 100644
--- a/science/cgnslib/Portfile
+++ b/science/cgnslib/Portfile
@@ -8,6 +8,8 @@ PortGroup                   muniversal 1.1
 
 name                        cgnslib
 github.setup                CGNS CGNS 4.4.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from         tarball
 revision                    2
 categories                  science
 maintainers                 {mcalhoun @MarcusCalhoun-Lopez} openmaintainer
diff --git a/science/ckon/Portfile b/science/ckon/Portfile
index c11a7325995..2dc8efe3a12 100644
--- a/science/ckon/Portfile
+++ b/science/ckon/Portfile
@@ -5,9 +5,10 @@ PortGroup               github 1.0
 PortGroup               boost 1.0
 
 github.setup            tschaume ckon 0.7.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from     tarball
 revision                5
 categories              science
-platforms               darwin
 maintainers             nomaintainer
 license                 MIT
 
diff --git a/science/cm256cc/Portfile b/science/cm256cc/Portfile
index 506622419f2..9f45647409f 100644
--- a/science/cm256cc/Portfile
+++ b/science/cm256cc/Portfile
@@ -10,9 +10,11 @@ license             BSD
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 
 description         Fast GF(256) Cauchy MDS Block Erasure Codec in C++
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        f4exb cm256cc fbdffb2e74d926fa6ecf586268690496fe69483e
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20210209-[string range ${github.version} 0 7]
 checksums           rmd160  aea08a187d4357346870b05c996c1caecce1b6d1 \
                     sha256  4cf3a3759988ff0a17a949bc1fc661f73503b8e157d273b950af840bb3c04569 \
diff --git a/science/coolprop-refprop-headers/Portfile b/science/coolprop-refprop-headers/Portfile
index 1c6eb24dafa..7fa258775c6 100644
--- a/science/coolprop-refprop-headers/Portfile
+++ b/science/coolprop-refprop-headers/Portfile
@@ -4,6 +4,8 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        CoolProp REFPROP-headers b4faab1b73911c32c4b69c526c7e92f74edb67de
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 name                coolprop-refprop-headers
 version             20221207
 revision            0
diff --git a/science/cufflinks/Portfile b/science/cufflinks/Portfile
index 1c467fde959..dc995694501 100644
--- a/science/cufflinks/Portfile
+++ b/science/cufflinks/Portfile
@@ -5,13 +5,14 @@ PortGroup           github 1.0
 PortGroup           boost 1.0
 
 github.setup        cole-trapnell-lab cufflinks 2.2.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            2
 checksums           rmd160  6378571ecb06971d1dff5b6ef81a55b36a8be498\
                     sha256  e8316b66177914f14b3a0c317e436d386a46c4c212ca1b2326f89f8a2e08d5ae \
                     size    766280
 
 categories          science biology
-platforms           darwin
 maintainers         {ryandesign @ryandesign} openmaintainer
 license             Boost-1
 
diff --git a/science/dab-cmdline/Portfile b/science/dab-cmdline/Portfile
index 7fbfcdcc093..a0eb6d47cc4 100644
--- a/science/dab-cmdline/Portfile
+++ b/science/dab-cmdline/Portfile
@@ -9,9 +9,11 @@ license             GPL-2+
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         The DAB library provides entries for the \
     functionality to handle DAB/DAB+ through some simple calls.
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        srcejon dab-cmdline d615e2ba085f91dc7764cc28dfc4c9df49ee1a93
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20230302-[string range ${github.version} 0 7]
 checksums           rmd160  6ed06581a33ec19b0d80c325322ca28b1d6fbe0e \
                     sha256  7b74b9e466428b30b9b46ef365ddd4eb652eaa1255804c97f98686552a89b65d \
diff --git a/science/dcm2niix/Portfile b/science/dcm2niix/Portfile
index 5109a24e8e0..b3d747411c5 100644
--- a/science/dcm2niix/Portfile
+++ b/science/dcm2niix/Portfile
@@ -5,6 +5,8 @@ PortGroup           cmake 1.1
 PortGroup           github 1.0
 
 github.setup        rordenlab dcm2niix 1.0.20241208 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             ${github.version}
 
 revision            1
diff --git a/science/demeter/Portfile b/science/demeter/Portfile
index 7ff7c9438ee..3b50e601cb3 100644
--- a/science/demeter/Portfile
+++ b/science/demeter/Portfile
@@ -8,13 +8,14 @@ set perl-version    5.34
 perl5.branches      ${perl-version}
 
 github.setup        bruceravel demeter 0.9.26
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            1
 checksums           rmd160  ffabee287fe397551f3b6fa2d57900c43d9dd07a \
                     sha256  001e6a18a9150b8edffa1c00c81701003d13a300121e498207ab370d48542b28 \
                     size    82922089
 
 categories          science
-platforms           darwin
 license             Permissive
 maintainers         {nist.gov:joe.fowler @joefowler} openmaintainer
 
diff --git a/science/digital_rf/Portfile b/science/digital_rf/Portfile
index afec24cf776..7bd73d492b0 100644
--- a/science/digital_rf/Portfile
+++ b/science/digital_rf/Portfile
@@ -6,15 +6,16 @@ PortGroup           github 1.0
 PortGroup           boost 1.0
 
 github.setup        MITHaystack digital_rf 2.6.1
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            17
 
 categories          science
 license             BSD
-platforms           darwin
 maintainers         {mit.edu:rvolz @ryanvolz} {mit.edu:swoboj @jswoboda} openmaintainer
 
 description         Read, write, and interact with data in the Digital RF and Digital Metadata formats.
-long_description    ${description} The Digital RF project encompasses a standardized HDF5 format\
+long_description    {*}${description} The Digital RF project encompasses a standardized HDF5 format\
                     for reading and writing of radio frequency data and the software \
                     for doing so. The format is designed to be self-documenting \
                     for data archive and to allow rapid random access for data \
diff --git a/science/direwolf/Portfile b/science/direwolf/Portfile
index ca22763073d..4d9240f5c7f 100644
--- a/science/direwolf/Portfile
+++ b/science/direwolf/Portfile
@@ -15,6 +15,8 @@ long_description    Dire Wolf is a software \"soundcard\" AX.25 packet \
     Internet Gateway (IGate).
 
 github.setup        wb2osz  direwolf 1.6
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  7dc6ee92a7acc88d9ace404965cc0e9fec4e1867 \
                     sha256  781fe56d67f2f2000d8c42886ca2bb9abc4ebe034cd847a0131a8f3a9347ab67 \
                     size    22297857
diff --git a/science/ds9/Portfile b/science/ds9/Portfile
index e797ab7de0a..e56cdd76ec0 100644
--- a/science/ds9/Portfile
+++ b/science/ds9/Portfile
@@ -4,6 +4,8 @@ PortSystem              1.0
 PortGroup               github 1.0
 
 github.setup            SAOImageDS9 SAOImageDS9 8.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from     tarball
 name                    ds9
 revision                1
 categories              science graphics
diff --git a/science/dsd/Portfile b/science/dsd/Portfile
index 690b17a9f33..78ac0fe2899 100644
--- a/science/dsd/Portfile
+++ b/science/dsd/Portfile
@@ -10,9 +10,11 @@ platforms           darwin macosx
 license             {GPL-2 ISC}
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         DSD is able to decode several digital voice formats (ex. P25p1, DMR and NXDN).
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        szechyjs dsd 59423fa46be8b41ef0bd2f3d2b45590600be29f0
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20220314-[string range ${github.version} 0 7]
 checksums           rmd160  e6378ab28a6be0f12138cbd09a9adcf07d523f4a \
                     sha256  f5a8b6f23d2e98cfa49219ccd65798683c31b19fba91e3c38e45e3935c81e096 \
diff --git a/science/erfa/Portfile b/science/erfa/Portfile
index 6ea36c75dc0..d49222b240d 100644
--- a/science/erfa/Portfile
+++ b/science/erfa/Portfile
@@ -4,11 +4,12 @@ PortSystem              1.0
 PortGroup               github 1.0
 
 github.setup            liberfa erfa 2.0.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from     tarball
 revision                0
 categories              science
 maintainers             {mps @Schamschula} openmaintainer
 license                 BSD
-platforms               darwin
 
 description             Essential Routines for Fundamental Astronomy
 long_description        {*}${description}
diff --git a/science/exodriver/Portfile b/science/exodriver/Portfile
index 4f4e4a73606..7a9cea1312c 100644
--- a/science/exodriver/Portfile
+++ b/science/exodriver/Portfile
@@ -5,6 +5,8 @@ PortGroup           github 1.0
 
 set git_tag         e04b0b6
 github.setup        labjack exodriver ${git_tag}
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 
 version             2.5.1
 revision            1
diff --git a/science/exonerate/Portfile b/science/exonerate/Portfile
index b019d65889e..06080279529 100644
--- a/science/exonerate/Portfile
+++ b/science/exonerate/Portfile
@@ -4,6 +4,8 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        nathanweeks exonerate 2.4.0 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 categories          science
 maintainers         sanger.ac.uk:mg13 openmaintainer
 license             GPL-3
diff --git a/science/fcl/Portfile b/science/fcl/Portfile
index c86ec0b07e2..5f7a93b31d7 100644
--- a/science/fcl/Portfile
+++ b/science/fcl/Portfile
@@ -5,10 +5,11 @@ PortGroup  github 1.0
 categories          science
 maintainers         {mmoll @mamoll} openmaintainer
 description         A Flexible Collision Library
-long_description    $description
+long_description    {*}$description
 github.setup        flexible-collision-library fcl 0.7.0
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            0
-platforms           darwin
 license             BSD
 depends_build-append port:pkgconfig
 depends_lib-append  port:libccd path:share/pkgconfig/eigen3.pc:eigen3
diff --git a/science/flann/Portfile b/science/flann/Portfile
index 9da8b10ea70..36031c1c819 100644
--- a/science/flann/Portfile
+++ b/science/flann/Portfile
@@ -6,6 +6,8 @@ PortGroup           mpi 1.0
 PortGroup           github 1.0
 
 github.setup        mariusmuja flann 1.9.2
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 revision            3
 categories          science devel
 maintainers         nomaintainer
diff --git a/science/freedv-gui/Portfile b/science/freedv-gui/Portfile
index bc76cbae7b3..ea55fb97754 100644
--- a/science/freedv-gui/Portfile
+++ b/science/freedv-gui/Portfile
@@ -11,9 +11,11 @@ license             LGPL-2.1
 maintainers         {ra1nb0w @ra1nb0w} openmaintainer
 description         GUI Application for FreeDV - an open source digital \
     voice protocol that integrates the modems, codecs, and FEC
-long_description    ${description}
+long_description    {*}${description}
 
 github.setup        drowe67 freedv-gui 1.8.12 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 checksums           rmd160  48c2d37179a1feccf285642bc68ddfaa0bd1ba85 \
                     sha256  600a966210a6fc34a7b4381105474c451cf4e11cce4aeedf99faf4aed6ee5f35 \
                     size    11291831
diff --git a/science/funtools/Portfile b/science/funtools/Portfile
index 26a7ffd4397..067c0cbd361 100644
--- a/science/funtools/Portfile
+++ b/science/funtools/Portfile
@@ -4,8 +4,9 @@ PortSystem          1.0
 PortGroup           github 1.0
 
 github.setup        ericmandel funtools 1.4.7 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 categories          science
-platforms           darwin
 maintainers         {aronnax @lpsinger} openmaintainer
 license             LGPL-2.1
 
diff --git a/science/gate/Portfile b/science/gate/Portfile
index b6e47ec16e9..2516d845bc3 100644
--- a/science/gate/Portfile
+++ b/science/gate/Portfile
@@ -10,6 +10,8 @@ PortGroup           active_variants 1.1
 PortGroup           compiler_blacklist_versions 1.0
 
 github.setup        OpenGATE Gate 8.2 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 name                gate
 revision            2
 
@@ -21,7 +23,6 @@ long_description    GATE is dedicated to numerical simulations in medical imagin
                     It currently supports simulations of Emission Tomography (PET and SPECT), \
                     Computed Tomography (CT) and Radiotherapy experiments.
 homepage            http://www.opengatecollaboration.org
-platforms           darwin
 
 checksums           rmd160  44ceda2372c4138ef92a9a8641c1901d9d079ea8 \
                     sha256  01185c6c448df227e081113abbfd04b71d638f7365269a492a917d0dae7db5a9 \
diff --git a/science/gerbil/Portfile b/science/gerbil/Portfile
index 31c1b5c6fb3..7e34bace259 100644
--- a/science/gerbil/Portfile
+++ b/science/gerbil/Portfile
@@ -7,6 +7,8 @@ PortGroup           qt5 1.0
 PortGroup           boost 1.0
 
 github.setup        gerbilvis gerbil 5a7705fe1170f812a6cd0e79a1a853f4d8aec2cf
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             2020-05-06-5a7705f
 revision            17
 checksums           rmd160  9b3f9ac2589a4f3b2ae12db6b02fdcd924886ec4 \
@@ -16,7 +18,6 @@ checksums           rmd160  9b3f9ac2589a4f3b2ae12db6b02fdcd924886ec4 \
 categories          science
 license             GPL-3
 maintainers         {cal @neverpanic} openmaintainer
-platforms           darwin
 description         Hyperspectral Image Visualization & Analysis Framework
 long_description    \
     Gerbil is a generic framework for visualization and analysis of \
diff --git a/science/gnss-sdr/Portfile b/science/gnss-sdr/Portfile
index 8b55f2f396f..5cfa82d2560 100644
--- a/science/gnss-sdr/Portfile
+++ b/science/gnss-sdr/Portfile
@@ -12,7 +12,6 @@ maintainers         {michaelld @michaelld} {gmail.com:carles.fernandez @carlesfe
 description         An Open Source Global Navigation Satellite Systems (GNSS) (for example: GPS, Galileo, Glonass, Beidou, etc) Software Defined Radio (SDR) Receiver
 categories          science
 license             GPL-3
-platforms           darwin
 
 dist_subdir         gnss-sdr
 
@@ -22,10 +21,12 @@ boost.version 1.71
 
 if {${subport} eq "gnss-sdr"} {
 
-    long_description    ${description}: \
+    long_description    {*}${description}: \
         This port is kept up with the GNSS-SDR release, which is typically updated every few months.
 
     github.setup    gnss-sdr gnss-sdr 0.0.19 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     revision        1
     checksums       rmd160  11daaaa2e4acbbcc837d8bd4f42546a6440675bc \
                     sha256  e1f555da5ed8d0e0002441b771993409af29ed897784a0ebc7ee8d6c74b0cb98 \
@@ -38,9 +39,11 @@ if {${subport} eq "gnss-sdr"} {
 }
 
 subport gnss-sdr-devel {
-    long_description    ${description}: \
+    long_description    {*}${description}: \
         This port is kept up with the GNSS-SDR GIT next branch, which is typically updated daily to weekly. This version of GNSS-SDR generally contains fixes and new features that will be incorporated in an upcoming release.
     github.setup    gnss-sdr gnss-sdr ec180d852574e10c621f9bf498d3ef70d26342ce
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20240126-[string range ${github.version} 0 7]
     checksums       rmd160  6171d3966487f1cdf78fcc18e9a3f33f7a6f87a4 \
                     sha256  6fbf9bfa1813a00daefdaa5a11b3f15f396af4c957b1792378e4f2a92952723a \
diff --git a/science/gnuradio/Portfile b/science/gnuradio/Portfile
index adddfd59526..3f598636ef7 100644
--- a/science/gnuradio/Portfile
+++ b/science/gnuradio/Portfile
@@ -16,12 +16,14 @@ license             GPL-3
 if {${subport} eq ${name}} {
 
     github.setup    gnuradio gnuradio 3.8.5.0 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  098825a19d8962bac72f2f2e14fcdfee8500f307 \
                     sha256  dd336400034b57b7bce7b1fec6c5cd99f1e9dde7b78faa2cd28105877c213b14 \
                     size    3399901
     revision        3
 
-    long_description    ${description}: \
+    long_description    {*}${description}: \
         This port is kept up with the GNU Radio release, \
         currently ${version}, which is typically updated twice per year.
 
@@ -55,12 +57,14 @@ subport gnuradio37 {
 
     name            gnuradio37
     github.setup    gnuradio gnuradio 3.7.14.0 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  0165a52a4770a02b4843544e4ba6bc59d84fa7d1 \
                     sha256  3d895e29417efd4ef8ab4053bed2ea9117b4476c0ae729f065088242f0f61f9f \
                     size    4460817
     revision        6
 
-    long_description    ${description}: \
+    long_description    {*}${description}: \
         This port is kept up with the GNU Radio 3.7 release, \
         currently ${version}, which is a legacy branch that \
         will not see much maintenance\; place consider updating \
@@ -93,13 +97,15 @@ subport gnuradio-next {
 
     name            gnuradio-next
     github.setup    gnuradio gnuradio 03d92ac19a11356175533aae4ad5804a354be075
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200419-[string range ${github.version} 0 7]
     checksums       rmd160  0a9e1294036e786116c96d68f9116e3f2798d325 \
                     sha256  bb2dab14e159a4b58ccf317ece3b4132959739f4b5b217d8e0add3c5ce581f5f \
                     size    3950832
     revision        7
 
-    long_description    ${description}: \
+    long_description    {*}${description}: \
         This port is kept up with the GNU Radio GIT 'master' \
         branch (as of 2018-09-20), which is typically updated \
         daily to weekly.  This version of GNU Radio represents \
diff --git a/science/gpredict/Portfile b/science/gpredict/Portfile
index de1b01397bd..7253baa6031 100644
--- a/science/gpredict/Portfile
+++ b/science/gpredict/Portfile
@@ -7,7 +7,6 @@ PortGroup           app 1.0
 name                gpredict
 categories          science
 license             GPL-2+
-platforms           darwin
 maintainers         {mps @Schamschula} {ra1nb0w @ra1nb0w} openmaintainer
 
 description         GNOME-based satellite tracking program
@@ -23,6 +22,8 @@ long_description    Gpredict is a real-time satellite tracking and orbit \
 homepage            http://gpredict.oz9aec.net/
 
 github.setup        csete gpredict 098e3768240c7f5a169930a2660a23c9f42b37d6
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 # Note version is date and approximate hour (UTC)
 version             2023122422-[string range ${github.version} 0 7]
 checksums           rmd160  de739e0a782b962463d1975ef64f50852cd24ac7 \
diff --git a/science/gqrx/Portfile b/science/gqrx/Portfile
index 016e445bd58..85f8bb5bb6d 100644
--- a/science/gqrx/Portfile
+++ b/science/gqrx/Portfile
@@ -26,6 +26,8 @@ homepage            https://gqrx.dk
 if {${subport} eq ${name}} {
 
     github.setup    gqrx-sdr gqrx 2.16 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  a68883414b7480d9d7410df2e492018998e7cb23 \
                     sha256  68ecd4c3e81afe44f0b234edf02d31d24baa4033158bacefe735d73503a0aeeb \
                     size    3608334
diff --git a/science/gr-adapt/Portfile b/science/gr-adapt/Portfile
index e030d15b809..37725f9fa48 100644
--- a/science/gr-adapt/Portfile
+++ b/science/gr-adapt/Portfile
@@ -8,11 +8,13 @@ name                gr-adapt
 license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 description         Adaptive filters for GNU Radio
-long_description    ${description}
+long_description    {*}${description}
 
 if {${subport} eq ${name}} {
 
     github.setup karel gr-adapt 13245e3fbf31c7f78a0805dfffadafa5952549fc
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version      20200630-[string range ${github.version} 0 7]
     checksums    rmd160  45f657dc4d5e05809fea9217b395b520a1098626 \
                  sha256  6a830ffb84a85572cdb392bbd70add9eb720c2487fc407bca9d40c72c36bdbaf \
@@ -30,6 +32,8 @@ subport gr37-adapt {
     name         gr37-adapt
 
     github.setup karel gr-adapt 4bbdde4ce52e88365ab8f51c05b7f08f90573275
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version      20191021-[string range ${github.version} 0 7]
     checksums    rmd160 86f39d385400bbe039d0ebbdf46adfe7ecd172f0 \
                  sha256 4d6efa41c6192d15a7880b99f4f058dc4b2dcf23aeaf0a863bb5d968b9a1f5d1 \
diff --git a/science/gr-air-modes/Portfile b/science/gr-air-modes/Portfile
index 6a95f911471..332a326e239 100644
--- a/science/gr-air-modes/Portfile
+++ b/science/gr-air-modes/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-air-modes
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    bistromath gr-air-modes a2f2627c5421368b8af1b57ca9818e1c79d4f4f0
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20191015-[string range ${github.version} 0 7]
     checksums       rmd160  c217e9a5da47bf639f94fed4d2490d88717ca40a \
                     sha256  ec716122fd2c7e6e3f66a1d5c887b4433990c1036d2bdd4d7424808cca5a5a4e \
@@ -30,6 +32,8 @@ subport gr37-air-modes {
     name            gr37-air-modes
 
     github.setup    bistromath gr-air-modes 0b6c3835062fc371d79fcb3cf3a6076d4a5ee36d
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20170928
     checksums       rmd160 1ebd3db9ceb68d6d12a0f84c944ad4c9ace14d31 \
                     sha256 83faacb86e42033773f333d1c488efb9d0cd0e4a26217c93b2f45a828363fc7f
diff --git a/science/gr-ais/Portfile b/science/gr-ais/Portfile
index 93d30bd06fc..2dbe2ff387a 100644
--- a/science/gr-ais/Portfile
+++ b/science/gr-ais/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-ais
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-ais {
     name            gr37-ais
 
     github.setup    bistromath gr-ais 1863d1bf8a7709a8dfedb3ddb8e2b99112e7c872
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20151220
     checksums       rmd160 98ad4781960817c53576cd823a6d9806824f1f14 \
                     sha256 e62755e674d5c7b306fb9a22ed0ab88a69fb46dbc179bc80a4dcff3c7fc826b7
diff --git a/science/gr-baz/Portfile b/science/gr-baz/Portfile
index 524f8805f68..89e1c9d621b 100644
--- a/science/gr-baz/Portfile
+++ b/science/gr-baz/Portfile
@@ -8,10 +8,12 @@ name                gr-baz
 license             GPL-3
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 homepage            https://wiki.spench.net/wiki/Gr-baz
 
 github.setup        balint256 gr-baz 937834ce3520b730277328d8e0cdebb3f2b1aafc
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20200409-[string range ${github.version} 0 7]
 checksums           rmd160  62c7e8c1c62000b3bf8f7dee8b4ee0bbde7bc1b8 \
                     sha256  6cfb84fc38046f2429e679a9429bec8b404deb955f4cceecb33f17dc4d73110a \
diff --git a/science/gr-cdma/Portfile b/science/gr-cdma/Portfile
index 9326c10e0e8..e716648c866 100644
--- a/science/gr-cdma/Portfile
+++ b/science/gr-cdma/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-cdma
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: a code-division multiple (user) access (CDMA) physical layer.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-cdma {
     name            gr37-cdma
 
     github.setup    anastas gr-cdma 91067d780e907a1a8d9df53077460aac2ff09f15
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20161220
     checksums       rmd160 99c26aa048e690a4b11e10423baba5c9921db5c7 \
                     sha256 18ba151aa085aeb9cdc8fc5329f51d1d4af012c1bc58a1a303fe0911809752a9
diff --git a/science/gr-fcdproplus/Portfile b/science/gr-fcdproplus/Portfile
index 47299f8deda..eab3bfa52fd 100644
--- a/science/gr-fcdproplus/Portfile
+++ b/science/gr-fcdproplus/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-fcdproplus
 maintainers         {michaelld @michaelld} openmaintainer
 description         Implements a funcube dongle pro+ source in GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    dl1ksv gr-fcdproplus 575fcafbb8f36dc11d95a305f331660612a44596
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200811-[string range ${github.version} 0 7]
     checksums       rmd160  81616bfcd52a2c0fc0aabb0ab413a4cb540b0b9d \
                     sha256  2d360d367794290df802dadce984ddd28e150a9042b9d1301a661475634fbb21 \
@@ -38,6 +40,8 @@ subport gr37-fcdproplus {
     name            gr37-fcdproplus
 
     github.setup    dl1ksv gr-fcdproplus 0006c36320cd7a3bc786dd6f186c94809bf445cc
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20180828
     checksums       rmd160 f71fa01127e21a79b662dbc2a22bc6e1b4030e69 \
                     sha256 187744ef7154008a2c6f0c636e2963674ded75d77b580b77626b7c47c285fb5f \
diff --git a/science/gr-foo/Portfile b/science/gr-foo/Portfile
index 874d7fc875f..84660004130 100644
--- a/science/gr-foo/Portfile
+++ b/science/gr-foo/Portfile
@@ -8,11 +8,13 @@ PortGroup           gnuradio 1.0
 name                gr-foo
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
     github.setup    bastibl gr-foo 13fac53de827ece4f2a5a367ed8cb3900238b3f6
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.8
     version         20191217-[string range ${github.version} 0 7]
     checksums       rmd160  ce32f45356ede334adefc4105748cc0d8b682ada \
@@ -31,6 +33,8 @@ subport gr37-foo {
     name            gr37-foo
 
     github.setup    bastibl gr-foo a2d8670313b846bc6aded3f123b02a960e59b4e6
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.7
     version         20190606-[string range ${github.version} 0 7]
     checksums       rmd160  8ab7bc7829f9edef4e3378b5541bcf137be5465c \
diff --git a/science/gr-fosphor/Portfile b/science/gr-fosphor/Portfile
index cd8e532e244..49342dbf779 100644
--- a/science/gr-fosphor/Portfile
+++ b/science/gr-fosphor/Portfile
@@ -12,13 +12,15 @@ homepage            http://sdr.osmocom.org/trac/wiki/fosphor
 license             GPL-3
 maintainers         {michaelld @michaelld} {ra1nb0w @ra1nb0w} openmaintainer
 description         gr-fosphor provides a GNU Radio block for RTSA-like spectrum visualization using GPU acceleration.
-long_description    ${description} \
+long_description    {*}${description} \
     This port is kept up with the gr-fosphor GIT 'master' branch, which is \
     typically updated weekly to monthly.
 
 if {${subport} eq ${name}} {
 
     github.setup    osmocom gr-fosphor defdd4aca6cd157ccc3b10ea16b5b4f552f34b96
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200130-[string range ${github.version} 0 7]
     checksums       rmd160  95ea3fad5f31bdf0203b21da2db9cc44e598227a \
                     sha256  0a12468c4618aff3a6ab4a3dde03fc4220db70a8c5b4198674e5e35497f8ea28 \
@@ -36,6 +38,8 @@ subport gr37-fosphor {
     name            gr37-fosphor
 
     github.setup    osmocom gr-fosphor fa6761afbf8c2658782e0c7fc5d51063679b7ae4
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20191202-[string range ${github.version} 0 7]
     checksums       rmd160  a05bcc9ef655a1eef8dcd8e23938885e929d8855 \
                     sha256  e760c46ba2bee24b7488940b107d776192296b39d78040a76cec0e393e63a2d2 \
diff --git a/science/gr-gfdm/Portfile b/science/gr-gfdm/Portfile
index 815472de047..edb6efdddaa 100644
--- a/science/gr-gfdm/Portfile
+++ b/science/gr-gfdm/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-gfdm
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: Generalized Frequency Division Multiplexing.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    jdemel gr-gfdm df94a58da883e796c18a0a5679d4992e94158c8c
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200409-[string range ${github.version} 0 7]
     revision        4
 
@@ -28,6 +30,8 @@ subport gr37-gfdm {
     name            gr37-gfdm
 
     github.setup    jdemel gr-gfdm 4cc5b5c4f3814f9e6a32c5f732412b70393127c6
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.7
     version         20190416-[string range ${github.version} 0 7]
     revision        4
diff --git a/science/gr-gsm/Portfile b/science/gr-gsm/Portfile
index 60601d51b9c..97410fdf000 100644
--- a/science/gr-gsm/Portfile
+++ b/science/gr-gsm/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-gsm
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: a set of tools for receiving information transmitted by GSM equipment/devices.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    ptrkrysik gr-gsm fd4454d6ec6e2e65db60519892e77dece299a6c7
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200214-[string range ${github.version} 0 7]
     checksums       rmd160  b0c22e3f4e1d16b364e63696bc5fa774b085b8cf \
                     sha256  8ecffa8a6f7733ac7e4e3744592534478425ce89811e4483cf687cb7ad31ad4a \
@@ -35,6 +37,8 @@ subport gr37-gsm {
     name            gr37-gsm
 
     github.setup    ptrkrysik gr-gsm 592ec9b7859f544b297e9352323b45ceb450a68a
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20180812
     checksums       rmd160 76289afc52c484bdb1a4a60a18b6cb85f2a4ba3d \
                     sha256 d628af9a27130a89458efd9f91056457e97f01a66ee5809455f0c95607033d41 \
diff --git a/science/gr-hermeslite2/Portfile b/science/gr-hermeslite2/Portfile
index a8ce3968d3a..dc303926f45 100644
--- a/science/gr-hermeslite2/Portfile
+++ b/science/gr-hermeslite2/Portfile
@@ -8,9 +8,11 @@ name                gr-hermeslite2
 license             GPL-2+
 maintainers         {@ra1nb0w irh.it:rainbow} openmaintainer
 description         GNU Radio interface module for Hermes Lite 2
-long_description    ${name} is a ${description}
+long_description    ${name} is a {*}${description}
 
 github.setup        daniestevez gr-hermeslite2 3cabd011e0bd1c6dbcaa5a11d9c0f3eb2b58fb8e
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20211214-[string range ${github.version} 0 7]
 checksums           rmd160  e362a9de119d521c01e81d396e707e7ab13e690a \
                     sha256  592abb72e960f6b263aa2d48a807e0e5677a7fb4fa3ca08aefa2817b5c8683a8 \
diff --git a/science/gr-hpsdr/Portfile b/science/gr-hpsdr/Portfile
index bbba89fb57a..ec270c9ac56 100644
--- a/science/gr-hpsdr/Portfile
+++ b/science/gr-hpsdr/Portfile
@@ -8,9 +8,11 @@ name                gr-hpsdr
 license             GPL-2+
 maintainers         {@ra1nb0w irh.it:rainbow} openmaintainer
 description         gnuradio module for OpenHPSDR Hermes/Metis and Red Pitaya using the OpenHpsdr 1 protocol.
-long_description    ${name} is a ${description}
+long_description    ${name} is a {*}${description}
 
 github.setup        Tom-McDermott gr-hpsdr 49e9e9ce7c84b0aa3cb7a590e4e9950e7850747d
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20210406-[string range ${github.version} 0 7]
 checksums           rmd160  bc694920d4a26d8389e31c14f93203e2eb512c76 \
                     sha256  fd7fb76105315e9d1964816ac2407893ba407c5b7cea5c3dbd59951343120542 \
diff --git a/science/gr-ieee802-11/Portfile b/science/gr-ieee802-11/Portfile
index 421bfbad85a..d0ac79cce9d 100644
--- a/science/gr-ieee802-11/Portfile
+++ b/science/gr-ieee802-11/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-ieee802-11
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    bastibl gr-ieee802-11 99f1a4564f0a2ce4dc221e71a6ec5fead00b0bd3
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.8
     version         20191217-[string range ${github.version} 0 7]
     checksums       rmd160  711357dd74f36d6d15acf246fb804aa5b203823a \
@@ -29,6 +31,8 @@ subport gr37-ieee802-11 {
     name            gr37-ieee802-11
 
     github.setup    bastibl gr-ieee802-11 80dd9038c79dd5fe853946a4edd911f84500e757
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.7
     version         20190416-[string range ${github.version} 0 7]
     checksums       rmd160  f38f121c7623a2044bea68ad71aab84492086db2 \
diff --git a/science/gr-ieee802-15-4/Portfile b/science/gr-ieee802-15-4/Portfile
index 298a2869efa..b9ca456556f 100644
--- a/science/gr-ieee802-15-4/Portfile
+++ b/science/gr-ieee802-15-4/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-ieee802-15-4
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    bastibl gr-ieee802-15-4 a3c79af96e18de3eb3a76659e1669a370efccf17
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.8
     version         20191006-[string range ${github.version} 0 7]
     checksums       rmd160  b1a1946bdd7621c2cfbc0837329fb7f4a120c1e2 \
@@ -29,6 +31,8 @@ subport gr37-ieee802-15-4 {
     name            gr37-ieee802-15-4
 
     github.setup    bastibl gr-ieee802-15-4 d3d94023c71af9e6d7721f7412fba88ff5325234
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.7
     version         20190606-[string range ${github.version} 0 7]
     checksums       rmd160  5fa59c234659a472b6dc6c6d7f6f02c7d0d8ac68 \
diff --git a/science/gr-iio/Portfile b/science/gr-iio/Portfile
index eccfddb11da..3e3d0fd3319 100644
--- a/science/gr-iio/Portfile
+++ b/science/gr-iio/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-iio
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: IIO device source
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
 
     github.setup    analogdevicesinc gr-iio 456589948229cc7bbed4c5724811ca24116711fe
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200403-[string range ${github.version} 0 7]
     checksums       rmd160  8c7309e30b378afc99fe3d3b8d03c6ee3fba2dd4 \
                     sha256  4a6c307f194655ec4fe8d1247fc9b4a6a0203f2a4686c9c948ff1877c50fa8d5 \
@@ -31,6 +33,8 @@ subport gr37-iio {
     name            gr37-iio
 
     github.setup    analogdevicesinc gr-iio 9088ac791955c522ce1143fe10b85ded56ead0ee
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20190725-[string range ${github.version} 0 7]
     checksums       rmd160 15848e397eff6bd8782cf3927795cd51cf730794 \
                     sha256 0bcb973ba406bbf5149765b974e36137ffc515457f2e86e8cade389a334fc5d7 \
diff --git a/science/gr-iqbalance/Portfile b/science/gr-iqbalance/Portfile
index 57b8f8c1b56..fc4c915fe3e 100644
--- a/science/gr-iqbalance/Portfile
+++ b/science/gr-iqbalance/Portfile
@@ -10,12 +10,14 @@ homepage            http://sdr.osmocom.org/trac/wiki/GrOsmoSDR
 license             GPL-3
 maintainers         {michaelld @michaelld} {ra1nb0w @ra1nb0w} openmaintainer
 description         gr-iqbalance provides I/Q balancing blocks for GNU Radio
-long_description    ${description}. This port is kept up with the \
+long_description    {*}${description}. This port is kept up with the \
     gr-iqbal GIT 'master' branch, which is typically updated monthly.
 
 if {${subport} eq ${name}} {
 
     github.setup  osmocom gr-iqbal 0.38.2 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums     rmd160  e6dc5ca7e8587131a7826f77f4c55a5e4e929d17 \
                   sha256  7a133cb0329b4695d959455638fdb603e3e027cabdc51ec721e501b50cb5facc \
                   size    106418
@@ -33,6 +35,8 @@ subport gr37-iqbalance {
     name          gr37-iqbalance
 
     github.setup  osmocom gr-iqbal fc67c92f0a739b2c998689f4bda155eb14700a78
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version       20191111
     checksums     rmd160  aeb13e2182f03e9c304e25c938bcf46679435db0 \
                   sha256  60ebcc9a563090ce49a13be6acc2dd5b6b41cacc17bb48fb6ca1cbadadac9ded \
diff --git a/science/gr-limesdr/Portfile b/science/gr-limesdr/Portfile
index f6a863d48de..f4c12d00a9f 100644
--- a/science/gr-limesdr/Portfile
+++ b/science/gr-limesdr/Portfile
@@ -8,11 +8,13 @@ name                gr-limesdr
 license             GPL-3+
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 description         GNU Radio block for LimeSDR-USB/LimeSDR-Mini boards
-long_description    ${description}
+long_description    {*}${description}
 homepage            https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio
 
 if {${subport} eq ${name}} {
     github.setup    myriadrf gr-limesdr 3.0.1 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  aea48429e6d95da8309368074c61c55af7d70a88 \
                     sha256  de7ffc85b8f4d39bd4c6be6b3f2860546e2e36a18a2f04b9f89c0c130b9dbedf \
                     size    2992951
@@ -28,6 +30,8 @@ subport gr37-limesdr {
     name            gr37-limesdr
 
     github.setup    myriadrf gr-limesdr 2.0.0 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  c8b2b7a745a316bcc7c6b7b0a1121da2bddea05a \
                     sha256  6f2fcf42dd45ca3893c914752f803dd811e046c21c567286fd1ad35a8d362f05 \
                     size    3083984
diff --git a/science/gr-linrad/Portfile b/science/gr-linrad/Portfile
index 5bf62afb866..7318e8a91c9 100644
--- a/science/gr-linrad/Portfile
+++ b/science/gr-linrad/Portfile
@@ -11,6 +11,8 @@ description         GNU Radio module implementing Linrad network protocol
 long_description    {*}${description}
 
 github.setup        daniestevez gr-linrad 5576e4cc287f440690450ae06012101fd2278ac5
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from tarball
 version             20200425-[string range ${github.version} 0 7]
 checksums           rmd160  0c2051f8a3a408a988633de8e433a8ce8253e96f \
                     sha256  74ecbb5263e427e0443e9d8e856e9e8fdb832dc514a36baedbbd743a66f0b697 \
diff --git a/science/gr-lora/Portfile b/science/gr-lora/Portfile
index 4c498aeb856..774313857c4 100644
--- a/science/gr-lora/Portfile
+++ b/science/gr-lora/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-lora
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides an open-source implementation of the LoRa CSS PHY.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-lora-BastilleResearch {
     name            gr37-lora-BastilleResearch
 
     github.setup    BastilleResearch gr-lora d587169a9676ad0f9ebf85e6a840f3955b3976d7
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20170713
     checksums       rmd160 99f82eb4e57eb59c863598b6a5e58f3632edc769 \
                     sha256 e1958cfe15e5ff3542e4df3dc7e626751321957cd2ff0122723d6a86d845cf6c
@@ -38,6 +40,8 @@ subport gr37-lora-rpp0 {
     name            gr37-lora-rpp0
 
     github.setup    rpp0 gr-lora b1d38fab9032a52eaf31bf33a145df45fce7512f
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      gr3.7
     version         20180919
     checksums       rmd160 f5fbd363efebe98a1bdbbd0259c6294ad7ea62e1 \
@@ -59,6 +63,8 @@ subport gr-lora-rpp0 {
     name            gr-lora-rpp0
 
     github.setup    rpp0 gr-lora 91fb5e4930379e03797b860ff8d2fb934f474e8a
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20200323-[string range ${github.version} 0 7]
     checksums       rmd160  c18dbf6cd87643e66277a06c8f8cdce42b4eadde \
                     sha256  63ca9b40c3ff69a3b18d145e5a58e65023d386c1dec1591b9dc57ffa748a1a20 \
diff --git a/science/gr-lte/Portfile b/science/gr-lte/Portfile
index 16aa117245c..3981bd0216b 100644
--- a/science/gr-lte/Portfile
+++ b/science/gr-lte/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-lte
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-lte {
     name            gr37-lte
 
     github.setup    kit-cel gr-lte 7288cc3a50b528955bf45d4a1526eac416361014
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20180220
     revision        1
     checksums       rmd160 c617f0ed14da1602a0bd1b0e5593ef51a6b54ed9 \
diff --git a/science/gr-mac/Portfile b/science/gr-mac/Portfile
index 0d0091bb70c..13b3108f71c 100644
--- a/science/gr-mac/Portfile
+++ b/science/gr-mac/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-mac
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-mac {
     name            gr37-mac
 
     github.setup    jmalsbury gr-mac 3ed6f0893341f48fc7fb000ca1cf679524b033a4
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20140919
     revision        1
     checksums       rmd160 9aab2a5b9e0a54019cc08980fe482fc126602970 \
diff --git a/science/gr-mapper/Portfile b/science/gr-mapper/Portfile
index 6fab9e3e9c6..e7e04a64b55 100644
--- a/science/gr-mapper/Portfile
+++ b/science/gr-mapper/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-mapper
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: Symbol to Bit Mapping and Demapping Blocks
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-mapper {
     name            gr37-mapper
 
     github.setup    gr-vt gr-mapper 2ea1eb68c5fe17f37cab870f93bb9f97d1066b72
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20181023-[string range ${github.version} 0 7]
     checksums       rmd160 5a6bbc193162809c115be427b6fab9023af637b8 \
                     sha256 044d511ade8688d9cd3dd3d6411529add52b9f582f7a20c57355da03de5f99b7 \
diff --git a/science/gr-ofdm/Portfile b/science/gr-ofdm/Portfile
index 5dd2a2ef8bf..cab2eeba5dc 100644
--- a/science/gr-ofdm/Portfile
+++ b/science/gr-ofdm/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-ofdm
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -23,6 +23,8 @@ subport gr37-ofdm {
     name            gr37-ofdm
 
     github.setup    rwth-ti gr-ofdm a40720c708b75ad4c12ff09e49931879e9f90e78
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20180306
     revision        4
     checksums       rmd160 ee1f3054e00e57986fa7536d9691018c69e9e68a \
diff --git a/science/gr-osmosdr/Portfile b/science/gr-osmosdr/Portfile
index bb171ca2fc2..f1c9a994fa5 100644
--- a/science/gr-osmosdr/Portfile
+++ b/science/gr-osmosdr/Portfile
@@ -18,6 +18,8 @@ long_description    Includes OSMO SDR support GNU Radio source and sink blocks i
 
 if {${name} eq ${subport}} {
     github.setup osmocom gr-osmosdr cffef690f29e0793cd2d6c5d028c0c929115f0ac
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version      20210117-[string range ${github.version} 0 7]
     checksums    rmd160  d80040fa6a40280dfff5e010d5f9b2575280f5e6 \
                  sha256  ce916d4fd04af6cde67e137f1ffc4ac69c12284c49f412312ace13622b1a1d07 \
@@ -40,6 +42,8 @@ subport gr37-osmosdr {
     name         gr37-osmosdr
 
     github.setup osmocom gr-osmosdr a95bbd74181de7df55cb14d728ee313314f6c092
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     github.livecheck.branch gr3.7
     version      20191201-[string range ${github.version} 0 7]
     checksums    rmd160  1d4c0d1738a2c975caab615e89900d6ec958817b \
diff --git a/science/gr-pcap/Portfile b/science/gr-pcap/Portfile
index 0dd9d116908..fc9129432df 100644
--- a/science/gr-pcap/Portfile
+++ b/science/gr-pcap/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-pcap
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality (blocks, GRC definitions, apps, etc) for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-pcap {
     name            gr37-pcap
 
     github.setup    osh gr-pcap f643e518c8d75aa8c9bf474fad51dae235dfddf1
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20170402
     revision        3
     checksums       rmd160 4426c2e9134bacc98e90f72933a9ed523969830c \
diff --git a/science/gr-pyqt/Portfile b/science/gr-pyqt/Portfile
index 6659098797e..fa2d41f1a29 100644
--- a/science/gr-pyqt/Portfile
+++ b/science/gr-pyqt/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-pyqt
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: pyqt based plotters intended for plotting bursted events.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-pyqt {
     name            gr37-pyqt
 
     github.setup    osh gr-pyqt 81807ed786fc940e833e5fa8f385f3870d0939f4
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20160712
     revision        1
     checksums       rmd160 2b1f472ef0e196958e165d156c21b4348b59631a \
diff --git a/science/gr-rds/Portfile b/science/gr-rds/Portfile
index 7a2fd7e96ee..76161a0ee09 100644
--- a/science/gr-rds/Portfile
+++ b/science/gr-rds/Portfile
@@ -7,12 +7,14 @@ PortGroup           gnuradio 1.0
 name                gr-rds
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides the Radio Data System (RDS) block for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-2+
 
 if {${subport} eq ${name}} {
 
     github.setup    bastibl gr-rds feaba5b1619c5b483fe66e7a91f4565fcf165eff
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.8
     version         20201015-[string range ${github.version} 0 7]
     checksums       rmd160  4aeb0969bc2e620308e3f1378b0aaaa5744d2152 \
@@ -39,6 +41,8 @@ subport gr37-rds {
     name            gr37-rds
 
     github.setup    bastibl gr-rds a02dcd9e7282a2638bd8a3637315acbf16fb40e2
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     git.branch      maint-3.7
     version         20200222-[string range ${github.version} 0 7]
     checksums       rmd160  fe39ffee1601202acab26651df776cf52a90468b \
diff --git a/science/gr-satellites/Portfile b/science/gr-satellites/Portfile
index 35edc7ed16c..51ff39ddfa7 100644
--- a/science/gr-satellites/Portfile
+++ b/science/gr-satellites/Portfile
@@ -8,11 +8,13 @@ name                gr-satellites
 license             GPL-3
 maintainers         {ra1nb0w @ra1nb0w} {michaelld @michaelld} openmaintainer
 description         GNU Radio decoders for several Amateur satellites.
-long_description    ${description}
+long_description    {*}${description}
 
 if {${subport} eq ${name}} {
 
     github.setup    daniestevez gr-satellites 3.16.0 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  eb850aec81467890ab4486aca3aa40cd55a28bb4 \
                     sha256  cd519ad6871d0d771ab602992b76e95fa26c7cfa5502757a49b45b7d1793af4e \
                     size    3903216
@@ -29,6 +31,8 @@ subport gr37-satellites {
     name gr37-satellites
 
     github.setup    daniestevez gr-satellites 1.8.4 v
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     checksums       rmd160  ac02a21377a654386ce706a00352915e97ddf3c0 \
                     sha256  4f8ff528750b89a4d33f173198f24a3c78badb4a122feff911c84ac925779133 \
                     size    760268
diff --git a/science/gr-specest/Portfile b/science/gr-specest/Portfile
index 5bd2f92c8b5..269ec48a518 100644
--- a/science/gr-specest/Portfile
+++ b/science/gr-specest/Portfile
@@ -9,7 +9,7 @@ PortGroup           gnuradio 1.0
 name                gr-specest
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides spectral estimation blocks for GNU Radio.
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 # Claims to use c++11 but actually needs constexpr constants 
@@ -20,6 +20,8 @@ compiler.blacklist    {clang < 1103}
 if {${subport} eq ${name}} {
 
     github.setup    kit-cel gr-specest fe599836c38e2a858c1ae0703ebd006a2fe9edae
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20191014-[string range ${github.version} 0 7]
     checksums       rmd160  9b44d1d1b49a1d7624115ae76bbc539b91a96783 \
                     sha256  63b75c426f14b9d0b817cdfbc58724e8c44c4d590217943792a6d30a12cf8e34 \
@@ -38,6 +40,8 @@ subport gr37-specest {
     name            gr37-specest
 
     github.setup    kit-cel gr-specest 91a27336b19a65125483fe0424b16f31822e7c85
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20180115
     revision        4
     checksums       rmd160 5b9614203006aa5ef497caccaa86dab2b40324b4 \
diff --git a/science/gr-tdd/Portfile b/science/gr-tdd/Portfile
index f978e332aa2..0d620323781 100644
--- a/science/gr-tdd/Portfile
+++ b/science/gr-tdd/Portfile
@@ -7,7 +7,7 @@ PortGroup           gnuradio 1.0
 name                gr-tdd
 maintainers         {michaelld @michaelld} openmaintainer
 description         Provides augmented functionality for GNU Radio: test driven development blocks
-long_description    ${description}
+long_description    {*}${description}
 license             GPL-3
 
 if {${subport} eq ${name}} {
@@ -22,6 +22,8 @@ subport gr37-tdd {
     name            gr37-tdd
 
     github.setup    mbkitine gr-tdd 13ae75ea7dd089f7d7082749f7b2ed2a7d771f38
+    # Change github.tarball_from to 'releases' or 'archive' next update
+    github.tarball_from tarball
     version         20190521-[string range ${github.version} 0 7]
     checksums       rmd160 c94cb8ed0e0b8601a50db8b3afe0322829216065 \
                     sha256 33e6fad6c45b136742bc85869364d1acb428fc19934543e8a50c80f1602e3681 \
diff --git a/science/gst-plugins-cairovis/Portfile b/science/gst-plugins-cairovis/Portfile
index c8bb56da11e..b8585b7471f 100644
--- a/science/gst-plugins-cairovis/Portfile
+++ b/science/gst-plugins-cairovis/Portfile
@@ -2,9 +2,10 @@ PortSystem            1.0
 PortGroup             github 1.0
 
 github.setup          lpsinger gst-plugins-cairovis 0.1.1 RELEASE-
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from   tarball
 revision              5
 categories            science gnome
-platforms             darwin
 maintainers           {aronnax @lpsinger}
 license               LGPL
 
diff --git a/science/gst-plugins-math/Portfile b/science/gst-plugins-math/Portfile
index e04e26ddca0..ff4f7d51d48 100644
--- a/science/gst-plugins-math/Portfile
+++ b/science/gst-plugins-math/Portfile
@@ -2,8 +2,9 @@ PortSystem            1.0
 PortGroup             github 1.0
 
 github.setup          lpsinger gst-plugins-math 1.0.1 v
+# Change github.tarball_from to 'releases' or 'archive' next update
+github.tarball_from   tarball
 categories            science gnome
-platforms             darwin
 maintainers           {aronnax @lpsinger} openmaintainer
 license               LGPL