Docker CI containers lack FUSE kernel module, and the env var approach
was unreliable when Tauri spawns linuxdeploy as a subprocess.
Instead: download linuxdeploy-x86_64.AppImage, extract its squashfs
content using squashfs-tools (no FUSE needed), then place a shell
wrapper at ~/.cache/tauri/linuxdeploy-x86_64.AppImage so Tauri uses
the extracted binary directly without AppImage runtime.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jared
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