→ Extended variant of the AppImage runtime ←
This runtime is based on the AppImageKit src/runtime.c with a few extensions:
☑ All libraries except libc, libdl, libpthread are statically linked, in particular the libraries for SquashFs and FUSE.
☑ All compression formats supported by SquashFs are included in the runtime binary.
☑ A smaller runtime-zstd variant is provided that can only uncompress zstd SquashFs images.
Clone this project on Linux and run make.
As described in the original
AppImageKit README,
to build an AppImage, append a SquashFs image with an /AppRun executable to the runtime executable appimage-runtime or
appimage-runtime-zstd to form a packed AppImage executable.
mksquashfs Package.appdir/ appdir.sqfs -root-owned -noappend -no-exports \
-noI -b 1048576 -comp zstd -Xcompression-level 22
cat appimage-runtime-zstd appdir.sqfs > Package.AppImage
chmod +x Package.AppImage