diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index bb94775bb..261cb693c 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -30,7 +30,7 @@ jobs:
         run: sudo apt-get update
 
       - name: Install dependencies
-        run: sudo apt-get install -yqq make autoconf build-essential ca-certificates pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev qt6-base-dev qmake6-bin libbz2-dev liblz4-dev libbluetooth-dev libpython3-dev python3 python3-dev libpython3-all-dev liblua5.4-dev liblua5.4-0 lua5.4 sed libssl-dev libgd-dev
+        run: sudo apt-get install -yqq make autoconf build-essential ca-certificates pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev qt6-base-dev libbz2-dev liblz4-dev libbluetooth-dev libpython3-dev python3 python3-dev libpython3-all-dev liblua5.4-dev liblua5.4-0 lua5.4 sed libssl-dev libgd-dev
 
       - name: Install Python dependencies
         run: pip install -r tools/requirements.txt
@@ -60,7 +60,7 @@ jobs:
         run: sudo apt-get update
 
       - name: Install dependencies
-        run: sudo apt-get install -yqq make autoconf build-essential ca-certificates pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev qt6-base-dev qmake6-bin libbz2-dev liblz4-dev libbluetooth-dev libpython3-dev python3 python3-dev libpython3-all-dev liblua5.4-dev liblua5.4-0 lua5.4 sed libssl-dev libgd-dev
+        run: sudo apt-get install -yqq make autoconf build-essential ca-certificates pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev qt6-base-dev libbz2-dev liblz4-dev libbluetooth-dev libpython3-dev python3 python3-dev libpython3-all-dev liblua5.4-dev liblua5.4-0 lua5.4 sed libssl-dev libgd-dev
 
       - name: Install Python dependencies
         run: pip install -r tools/requirements.txt
diff --git a/docker/archlinux/Dockerfile b/docker/archlinux/Dockerfile
index caaa2bc89..db30f971f 100644
--- a/docker/archlinux/Dockerfile
+++ b/docker/archlinux/Dockerfile
@@ -1,6 +1,6 @@
 FROM archlinux:base
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 RUN pacman -Syu --noconfirm
 RUN pacman-db-upgrade
 # qt5-base skipped
diff --git a/docker/build.sh b/docker/build.sh
index 9fd6e4bac..a0ca236c1 100755
--- a/docker/build.sh
+++ b/docker/build.sh
@@ -5,13 +5,13 @@ if [ ! -e docker_conf.inc ]; then
     exit 1
 fi
 . docker_conf.inc
+BUILDARG="${BUILDARG:-""}"
+
 # Make sure to connect a Proxmark3 when building if you want to be able to access it from within the Docker instance
 UART_PORT="$(../../pm3 --list|grep /dev|head -n1|cut -d' ' -f2)"
 if [ -n "$UART_PORT" ]; then
     UART_GID="$(stat -c '%g' $UART_PORT)"
-    BUILDARG="--build-arg UART_GID=$UART_GID"
-else
-    BUILDARG=""
+    BUILDARG="$BUILDARG --build-arg UART_GID=$UART_GID"
 fi
 
 if [ -n "$SKIPQT" ]; then
diff --git a/docker/debian-13-trixie-arm64/Dockerfile b/docker/debian-13-trixie-arm64/Dockerfile
index e65dd9fab..021596859 100644
--- a/docker/debian-13-trixie-arm64/Dockerfile
+++ b/docker/debian-13-trixie-arm64/Dockerfile
@@ -1,6 +1,6 @@
 FROM arm64v8/debian:trixie-slim
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
diff --git a/docker/debian-13-trixie-armhf/Dockerfile b/docker/debian-13-trixie-armhf/Dockerfile
index a69bdec5c..81c9b1319 100644
--- a/docker/debian-13-trixie-armhf/Dockerfile
+++ b/docker/debian-13-trixie-armhf/Dockerfile
@@ -1,6 +1,6 @@
 FROM arm32v7/debian:trixie-slim
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
diff --git a/docker/debian-13-trixie/Dockerfile b/docker/debian-13-trixie/Dockerfile
index 5047c6679..1bb7733d0 100644
--- a/docker/debian-13-trixie/Dockerfile
+++ b/docker/debian-13-trixie/Dockerfile
@@ -1,6 +1,6 @@
 FROM debian:trixie-slim
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && \
     apt-get upgrade -y && \
@@ -13,9 +13,9 @@ RUN apt-get install -y opencl-dev && \
 
 ARG SKIPQT=false
 RUN if [ "${SKIPQT}" = "false" ]; then \
-    apt-get install -y qt6-base-dev qmake6-bin && \
-    apt-get clean; \
-  fi
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
 
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
@@ -26,9 +26,9 @@ RUN passwd -d rrg
 ARG UART_GID
 # dialout group may already exist on another numeric ID than on host
 RUN if [ -n "${UART_GID}" ]; then \
-    groupadd -g ${UART_GID} mydialout || true; \
-    usermod -aG ${UART_GID} rrg; \
-  fi
+      groupadd -g ${UART_GID} mydialout || true; \
+      usermod -aG ${UART_GID} rrg; \
+    fi
 RUN printf 'rrg ALL=(ALL) ALL\n' | tee -a /etc/sudoers
 
 USER rrg
diff --git a/docker/debian-13-trixie/docker_conf.inc b/docker/debian-13-trixie/docker_conf.inc
index 5e7d4dc09..d4e88960e 100644
--- a/docker/debian-13-trixie/docker_conf.inc
+++ b/docker/debian-13-trixie/docker_conf.inc
@@ -1,2 +1,2 @@
 DOCKER_IMAGE=pm3-debian-trixie:1.0
-SKIPQT=1
+#SKIPQT=1
diff --git a/docker/debian-14-forky/Dockerfile b/docker/debian-14-forky/Dockerfile
index cda4babaa..3f9f3b986 100644
--- a/docker/debian-14-forky/Dockerfile
+++ b/docker/debian-14-forky/Dockerfile
@@ -1,6 +1,6 @@
 FROM debian:forky-slim
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
@@ -12,6 +12,12 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
diff --git a/docker/debian-14-forky/docker_conf.inc b/docker/debian-14-forky/docker_conf.inc
index 3b90349a0..54eeee843 100644
--- a/docker/debian-14-forky/docker_conf.inc
+++ b/docker/debian-14-forky/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-debian-forky:1.0
+#SKIPQT=1
diff --git a/docker/fedora-41/Dockerfile b/docker/fedora-41/Dockerfile
index c64b5646f..0612b5d3e 100644
--- a/docker/fedora-41/Dockerfile
+++ b/docker/fedora-41/Dockerfile
@@ -1,6 +1,6 @@
 FROM fedora:41
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 # qt5-qtbase-devel skipped
 RUN dnf install -y passwd sudo git make cmake gcc gcc-c++ arm-none-eabi-gcc-cs arm-none-eabi-newlib readline-devel bzip2-devel lz4-devel bluez-libs-devel python3-devel openssl-devel gd-devel libatomic findutils
 
diff --git a/docker/fedora-42/Dockerfile b/docker/fedora-42/Dockerfile
index 75516752c..581cc24e0 100644
--- a/docker/fedora-42/Dockerfile
+++ b/docker/fedora-42/Dockerfile
@@ -1,6 +1,6 @@
 FROM fedora:42
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 # qt5-qtbase-devel skipped
 RUN dnf install -y passwd sudo git make cmake gcc gcc-c++ arm-none-eabi-gcc-cs arm-none-eabi-newlib readline-devel bzip2-devel lz4-devel bluez-libs-devel python3-devel openssl-devel gd-devel libatomic findutils
 
diff --git a/docker/fedora-43/Dockerfile b/docker/fedora-43/Dockerfile
index 43995fe51..73223cbfd 100644
--- a/docker/fedora-43/Dockerfile
+++ b/docker/fedora-43/Dockerfile
@@ -1,6 +1,6 @@
 FROM fedora:rawhide
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 # qt5-qtbase-devel skipped
 RUN dnf install -y passwd sudo git make cmake gcc gcc-c++ arm-none-eabi-gcc-cs arm-none-eabi-newlib readline-devel bzip2-devel lz4-devel bluez-libs-devel python3-devel openssl-devel gd-devel libatomic findutils
 
diff --git a/docker/homebrew/Dockerfile b/docker/homebrew/Dockerfile
index d4893d154..d11abd604 100644
--- a/docker/homebrew/Dockerfile
+++ b/docker/homebrew/Dockerfile
@@ -1,6 +1,6 @@
 FROM homebrew/brew
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 
 ARG UART_GID
 # dialout group may already exist on another numeric ID than on host
diff --git a/docker/kali/Dockerfile b/docker/kali/Dockerfile
index c81861a1f..4b80bf549 100644
--- a/docker/kali/Dockerfile
+++ b/docker/kali/Dockerfile
@@ -1,6 +1,6 @@
 FROM kalilinux/kali-rolling
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
@@ -12,6 +12,12 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
diff --git a/docker/kali/docker_conf.inc b/docker/kali/docker_conf.inc
index 62f57876b..57373f155 100644
--- a/docker/kali/docker_conf.inc
+++ b/docker/kali/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-kali:1.0
+#SKIPQT=1
diff --git a/docker/opensuse-leap/Dockerfile b/docker/opensuse-leap/Dockerfile
index 7a86b5503..bed05c810 100644
--- a/docker/opensuse-leap/Dockerfile
+++ b/docker/opensuse-leap/Dockerfile
@@ -1,6 +1,6 @@
 FROM opensuse/leap
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 # libqt5-qtbase-devel skipped
 RUN zypper --non-interactive install --no-recommends shadow sudo git patterns-devel-base-devel_basis cmake gcc-c++ readline-devel libbz2-devel liblz4-devel bluez-devel python3-devel libopenssl-devel gd-devel
 
diff --git a/docker/opensuse-tumbleweed/Dockerfile b/docker/opensuse-tumbleweed/Dockerfile
index 5c18adbec..9bdfdc051 100644
--- a/docker/opensuse-tumbleweed/Dockerfile
+++ b/docker/opensuse-tumbleweed/Dockerfile
@@ -1,6 +1,6 @@
 FROM opensuse/tumbleweed
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 # libqt5-qtbase-devel skipped
 RUN zypper --non-interactive install --no-recommends shadow sudo git patterns-devel-base-devel_basis cmake gcc-c++ readline-devel libbz2-devel liblz4-devel bluez-devel python3-devel libopenssl-devel cross-arm-none-gcc15 cross-arm-none-newlib-devel gd-devel
 
diff --git a/docker/parrot-core-latest/Dockerfile b/docker/parrot-core-latest/Dockerfile
index 29faa61ae..25397f60a 100644
--- a/docker/parrot-core-latest/Dockerfile
+++ b/docker/parrot-core-latest/Dockerfile
@@ -1,6 +1,6 @@
 FROM parrotsec/core:latest
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
@@ -12,6 +12,12 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
diff --git a/docker/parrot-core-latest/docker_conf.inc b/docker/parrot-core-latest/docker_conf.inc
index 6410849ad..c1fa70a3b 100644
--- a/docker/parrot-core-latest/docker_conf.inc
+++ b/docker/parrot-core-latest/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-parrotsec-core-latest:1.0
+#SKIPQT=1
diff --git a/docker/rm.sh b/docker/rm.sh
index 72aab077b..de48f45e4 100755
--- a/docker/rm.sh
+++ b/docker/rm.sh
@@ -10,3 +10,4 @@ if [ -n "$CONTAINER" ]; then
     docker rm $CONTAINER
 fi
 docker image rm "$DOCKER_IMAGE"
+docker builder prune --force
diff --git a/docker/ubuntu-24.04/Dockerfile b/docker/ubuntu-24.04/Dockerfile
index de35f65f3..7ac58bf7d 100644
--- a/docker/ubuntu-24.04/Dockerfile
+++ b/docker/ubuntu-24.04/Dockerfile
@@ -1,8 +1,8 @@
 FROM ubuntu:24.04
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
-# qtbase5-dev skipped
+
 RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get dist-upgrade -y && \
@@ -12,20 +12,26 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 # Create rrg user => there is already a ubuntu user = 1000 that we need to move away
-RUN usermod -u 999 ubuntu
-RUN groupmod -g 999 ubuntu
+RUN usermod -u 900 ubuntu
+RUN groupmod -g 900 ubuntu
 RUN useradd -ms /bin/bash rrg
 RUN passwd -d rrg
 ARG UART_GID
 # dialout group may already exist on another numeric ID than on host
 RUN if [ -n "${UART_GID}" ]; then \
-    groupadd -g ${UART_GID} mydialout || true; \
-    usermod -aG ${UART_GID} rrg; \
-  fi
+      groupadd -g ${UART_GID} mydialout || true; \
+      usermod -aG ${UART_GID} rrg; \
+    fi
 RUN printf 'rrg ALL=(ALL) ALL\n' | tee -a /etc/sudoers
 
 USER rrg
diff --git a/docker/ubuntu-24.04/docker_conf.inc b/docker/ubuntu-24.04/docker_conf.inc
index 38c37aff7..78b2c6e76 100644
--- a/docker/ubuntu-24.04/docker_conf.inc
+++ b/docker/ubuntu-24.04/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-ubuntu-24.04:1.0
+#SKIPQT=1
diff --git a/docker/ubuntu-25.04/Dockerfile b/docker/ubuntu-25.04/Dockerfile
index e5153fbee..237460a4f 100644
--- a/docker/ubuntu-25.04/Dockerfile
+++ b/docker/ubuntu-25.04/Dockerfile
@@ -1,8 +1,8 @@
 FROM ubuntu:25.04
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
-# qtbase5-dev skipped
+
 RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get dist-upgrade -y && \
@@ -12,20 +12,26 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+      apt-get install -y qt6-base-dev && \
+      apt-get clean; \
+    fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 # Create rrg user => there is already a ubuntu user = 1000 that we need to move away
-RUN usermod -u 999 ubuntu
-RUN groupmod -g 999 ubuntu
+RUN usermod -u 900 ubuntu
+RUN groupmod -g 900 ubuntu
 RUN useradd -ms /bin/bash rrg
 RUN passwd -d rrg
 ARG UART_GID
 # dialout group may already exist on another numeric ID than on host
 RUN if [ -n "${UART_GID}" ]; then \
-    groupadd -g ${UART_GID} mydialout || true; \
-    usermod -aG ${UART_GID} rrg; \
-  fi
+      groupadd -g ${UART_GID} mydialout || true; \
+      usermod -aG ${UART_GID} rrg; \
+    fi
 RUN printf 'rrg ALL=(ALL) ALL\n' | tee -a /etc/sudoers
 
 USER rrg
diff --git a/docker/ubuntu-25.04/docker_conf.inc b/docker/ubuntu-25.04/docker_conf.inc
index 3b0c2e0e3..d50b44f7a 100644
--- a/docker/ubuntu-25.04/docker_conf.inc
+++ b/docker/ubuntu-25.04/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-ubuntu-25.04:1.0
+#SKIPQT=1
diff --git a/docker/ubuntu-25.10/Dockerfile b/docker/ubuntu-25.10/Dockerfile
index 10b9903eb..886db9dc4 100644
--- a/docker/ubuntu-25.10/Dockerfile
+++ b/docker/ubuntu-25.10/Dockerfile
@@ -1,8 +1,8 @@
 FROM ubuntu:25.10
 
-ENV LANG=C
+ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive
-# qtbase5-dev skipped
+
 RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get dist-upgrade -y && \
@@ -12,12 +12,18 @@ RUN apt-get update && \
 RUN apt-get install -y opencl-dev && \
     apt-get clean
 
+ARG SKIPQT=false
+RUN if [ "${SKIPQT}" = "false" ]; then \
+    apt-get install -y qt6-base-dev && \
+    apt-get clean; \
+  fi
+
 # uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 # Create rrg user => there is already a ubuntu user = 1000 that we need to move away
-RUN usermod -u 999 ubuntu
-RUN groupmod -g 999 ubuntu
+RUN usermod -u 900 ubuntu
+RUN groupmod -g 900 ubuntu
 RUN useradd -ms /bin/bash rrg
 RUN passwd -d rrg
 ARG UART_GID
diff --git a/docker/ubuntu-25.10/docker_conf.inc b/docker/ubuntu-25.10/docker_conf.inc
index 3c512afaa..0327ee04c 100644
--- a/docker/ubuntu-25.10/docker_conf.inc
+++ b/docker/ubuntu-25.10/docker_conf.inc
@@ -1 +1,2 @@
 DOCKER_IMAGE=pm3-ubuntu-25.10:1.0
+#SKIPQT=1
diff --git a/tools/pm3_online_tests.sh b/tools/pm3_online_tests.sh
index 998122f62..f939b57da 100755
--- a/tools/pm3_online_tests.sh
+++ b/tools/pm3_online_tests.sh
@@ -2,7 +2,7 @@
 
 # Online tests that require actual PM3 device connection
 # This is used to make sure that the language for the functions is english instead of the system default language.
-LANG=C
+LANG=C.UTF-8
 
 PM3PATH="$(dirname "$0")/.."
 cd "$PM3PATH" || exit 1
diff --git a/tools/pm3_tests.sh b/tools/pm3_tests.sh
index b22e48ed8..2f27a6389 100755
--- a/tools/pm3_tests.sh
+++ b/tools/pm3_tests.sh
@@ -5,7 +5,7 @@
 # SKIPUV=1 ./pm3_tests.sh
 
 # This is used to make sure that the language for the functions is english instead of the system default language.
-LANG=C
+LANG=C.UTF-8
 
 PM3PATH="$(dirname "$0")/.."
 cd "$PM3PATH" || exit 1