This is a binary release of Sail 0.18 for Linux. It is built using a Rocky Linux container, so it should work on a wide variety of Linux distributions with more recent glibc versions.
The tarball can be verified using GitHub artifact attestations with the GitHub CLI client, which should produce output like:
$ gh attestation verify sail.tar.gz --owner rems-project
Loaded digest sha256:4e9086b867c4b15bad2b5e93f1120134d12d76730ddca7d1c222c9079157c0b8 for file:///Users/alasdair/Downloads/sail.tar.gz
Loaded 1 attestation from GitHub API
✓ Verification succeeded!
sha256:4e9086b867c4b15bad2b5e93f1120134d12d76730ddca7d1c222c9079157c0b8 was attested by:
REPO PREDICATE_TYPE WORKFLOW
rems-project/sail https://slsa.dev/provenance/v1 .github/workflows/release.yml@refs/heads/release-0.18