Three fixes from a review of the previous commit.
Chromium's sandbox helper ships setuid, the way Arch's own electron and chromium packages ship theirs. Dropping --no-sandbox was right, but it left the app relying on unprivileged user namespaces alone: on linux-hardened, or anywhere else they are denied, Electron falls back to the helper and aborts because it is not root-owned 4755.
The AppImage's usr/ tree is now read before it is removed. Deleting it wholesale is correct for what upstream ships today, and the version bumps arrive unattended, so a release that starts putting something needed in there would have had it dropped on the way past without anyone seeing it. Anything that is not a known icon or a known compatibility library stops the build instead.
The upstream hook checks that the feed still names the asset the PKGBUILD builds. It hashes whatever the feed points at, so a rename — or an arm64 build reaching the Linux feed first — would have pinned that file's checksum to a URL nobody fetches, and the failure would have surfaced a build later as a checksum mismatch.
🤖 Generated by Opus 5 in Claude Code. Reviewed by Codex XHigh.
Co-Authored-By: Codex XHigh <codex@openai.com>
