Was pointed at a local checkout under /Users/isaac_corbrey/contrib — which only resolved on the Darwin host. Pointing at the upstream repo directly so the input evaluates on every host without needing a local working copy at a hard-coded path. Upstream is the AI-enabled jj TUI; the fork branches at icorbrey-contrib/gojo (icorbrey/push-*) have already been merged upstream, so there is nothing fork-only worth retaining.