diff --git a/README.md b/README.md
index 0ee9b80..2f50972 100644
--- a/README.md
+++ b/README.md
@@ -40,16 +40,10 @@ git clone --depth 1 https://github.com/t2linux/t2linux-fedora-kernel
 cd t2linux-fedora-kernel
 ```
 
-Pick the package you want to build (`t2linux-config`, `t2linux-repo`, `t2linux-config`, or `kernel`):
-
-```
-export PACKAGE="packagenamehere"
-```
-
 Then run the build container, which has dependencies already installed. The packages will be in the `_output` directory:
 
 ```
-podman run -it -v "$PWD":/repo -e PACKAGE ghcr.io/t2linux/fedora-dev:latest /repo/build-packages.sh
+podman run -it -v "$PWD":/repo ghcr.io/t2linux/fedora-dev:latest /repo/build-packages.sh
 ```
 
 ## Credits
diff --git a/build-packages.sh b/build-packages.sh
index d00b56e..6c84970 100755
--- a/build-packages.sh
+++ b/build-packages.sh
@@ -1,6 +1,12 @@
 #!/usr/bin/bash
 source /repo/util.sh
 
+if [[ -z "$PACKAGE" ]]; then
+    PACKAGE=""
+    echo "Available packages: t2linux-config, t2linux-repo, t2linux-config, or kernel"
+    read -p "Name of package to build: " PACKAGE
+fi
+
 cd /repo
 
 if [ "$PACKAGE" == "kernel" ]; then
@@ -8,4 +14,4 @@ if [ "$PACKAGE" == "kernel" ]; then
 fi
 
 cd /repo/$PACKAGE
-build_package $PACKAGE.spec
\ No newline at end of file
+build_package $PACKAGE.spec