Made AppImages way more robust, compatible and reproducible using containerization and by using system-provided glibc

AppImage-build-debian.sh

@@ -0,0 +1,27 @@
+#! /bin/bash
+set -e
+
+# Get torzu source dir
+TORZU_SOURCE_DIR="$(realpath "$(dirname "${BASH_SOURCE[0]}")")"
+echo "Source dir is $TORZU_SOURCE_DIR"
+rm -rf "$TORZU_SOURCE_DIR/AppImageBuilder/build"
+
+# Generate debian rootfs
+cd /tmp
+rm -rf rootfs-torzu-appimage-build
+debootstrap stable rootfs-torzu-appimage-build http://deb.debian.org/debian/
+bwrap --bind rootfs-torzu-appimage-build / \
+        --unshare-pid \
+        --dev-bind /dev /dev --proc /proc --tmpfs /tmp --ro-bind /sys /sys --dev-bind /run /run \
+        --tmpfs /var/tmp \
+        --chmod 1777 /tmp \
+        --ro-bind /etc/resolv.conf /etc/resolv.conf \
+        --ro-bind "$TORZU_SOURCE_DIR" /tmp/torzu-src \
+        --chdir / \
+        --tmpfs /home \
+        --setenv HOME /home \
+        --bind /tmp /tmp/hosttmp \
+        /tmp/torzu-src/AppImage-build-debian-inner.sh
+appimagetool /tmp/torzu-debian-appimage-rootfs /tmp/torzu.AppImage
+echo "AppImage generated at /tmp/torzu.AppImage! Cleaning up..."
+exec rm -rf /tmp/torzu-debian-appimage-rootfs /tmp/rootfs-torzu-appimage-build