Split off from #464. Support s3:// substituter URLs, e.g. s3://dcr-nix-cache?profile=<profile>&scheme=http®ion=<region>&endpoint=<domain>. Public (no-credential) S3 caches only for now: the server probes .narinfo and the worker downloads the NAR directly.
Split off from #464. Support
s3://substituter URLs, e.g.s3://dcr-nix-cache?profile=<profile>&scheme=http®ion=<region>&endpoint=<domain>. Public (no-credential) S3 caches only for now: the server probes.narinfoand the worker downloads the NAR directly.