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`cargo run -p xtask -- package BINARY OUTDIR` does what package.sh did: OUTDIR wiped and recreated, the `git archive HEAD tools mods/horizon/src/test/java crates/horizon-prepare research-lock.json LICENSE` tree extracted (the tar read in Rust, executables kept executable), the client, horizon-ctl and horizon-prepare copied (.exe beside an .exe, the same error when one is missing) and PLAY.txt. release.yml calls it; package.sh is gone. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>