mic92/niks3 binary cache

Push Nix build outputs to a niks3 binary cache with per-derivation caching

Trust Signals

name	description	required	default
server-url	niks3 server URL (e.g. https://niks3.example.com). The action fetches substituter URL, public keys, and OIDC audience from this server's /api/cache-config endpoint unless overridden below.	yes	—
substituter	Override the substituter URL written to nix.conf. Defaults to the server's configured cache-url.	no	—
skip-push	Only configure the substituter; do not push build outputs.	—	false
niks3-bin	Path to a niks3 binary. Defaults to downloading the pinned niks3 release.	no	—
cache-config-timeout	Seconds to wait for each /api/cache-config request before timing out.	—	15
cache-config-retries	Number of additional attempts to fetch /api/cache-config after a transient failure (network error, timeout, or 5xx).	—	3
drain-timeout	Seconds to wait for the upload daemon to drain in the post step.	—	600
debug	Enable debug logging.	—	false

no outputs