{"rid":"storage/cachix","card":{"rid":"storage/cachix","eid":"cachix","topic":"storage","slug":"cachix","provider":"Cachix (Nix binary cache hosting)","url":"https://www.cachix.org","domain":"cachix.org","category":"paas","tier":null,"verdict":"fails-quota","vorder":6,"grp":"rejected","confidence":"reported","binding":"none","identity_kind":"email","identity_basis":"defaulted","needs_card":null,"needs_phone":null,"needs_id":null,"needs_institution":null,"country":null,"crypto":null,"interfaces":"rest,rclone,cli","egress_metered":0,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":2,"usd_month":null,"usd_per_tb_month":null,"summary":"5 GB free for open-source projects: 'Users have a free 5 GB limit for open source projects and 20 Cachix Deploy agents.' Paid tiers start at 50 GiB.","duplicate_of":null,"n_unknown":8},"record":{"topic":"storage","slug":"cachix","provider":"Cachix (Nix binary cache hosting)","url":"https://www.cachix.org","category":"paas","free_tier":{"stated":"5 GB free for open-source projects: 'Users have a free 5 GB limit for open source projects and 20 Cachix Deploy agents.' Paid tiers start at 50 GiB.","unit":"GB","metered_on":"unstated","source_url":"https://www.cachix.org/pricing","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"not stated","source_url":"https://www.cachix.org/pricing","notes":"not stated"},"retention":{"stated":"not stated","source_url":"https://www.cachix.org/pricing","notes":"not stated"},"egress":{"terms":"Unlimited bandwidth even on the paid Starter tier ('Unlimited bandwidth', 'CloudFlare CDN caching'); free tier inherits the CF-backed delivery. Free egress is genuinely not the constraint here.","metered":false},"interface":["rest","rclone","cli"],"interface_detail":"rest","tooling":"`cachix` CLI (push/use), Nix `--substituters`, and the standard Nix binary-cache HTTP protocol (narinfo/nar). No rclone backend but the nar protocol is scriptable.","chaining":"one cache per account, 5 GB free; unlimited free accounts x 5 GB. Because a Nix cache is content-addressed and deduplicated, identical NARs are only stored once per cache - so multiplication is by account, not by file.","limits":[],"limits_note":"per-account quota: 5 GB hard on free (open-source only). retention: garbage collection removes unreferenced paths after a retention window (docs have a dedicated GC page). request-rate: not documented; served via Cloudflare.","identity_cost":{"kind":"email","detail":null,"country":null},"reliability_note":"Clean, documented, Cloudflare-fronted, unlimited bandwidth - the 5 GB is the only issue, and it is 100x short of the workload. Any Nix-cache-based plan is account-farming at 5 GB/account.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://www.cachix.org/pricing","date":"2026-10-21","proved":"'Users have a free 5 GB limit for open source projects and 20 Cachix Deploy agents'; '50 GiB of storage / Unlimited bandwidth / CloudFlare CDN caching' on Starter"},{"url":"https://cachix.org/api/v1/cache/nixpkgs","date":"2026-10-21","proved":"probe: GET -> 200, 241 bytes (cache endpoint live, anonymous)"}],"verdict":"fails-quota","verified_at":"2026-10-21T00:00:00.000Z","notes":"5 GB free for open-source projects: 'Users have a free 5 GB limit for open source projects and 20 Cachix Deploy agents.' Paid tiers start at 50 GiB.","extras":{"dead_end":{"failure_class":"quota","why":"5 GB free for open-source projects: 'Users have a free 5 GB limit for open source projects and 20 Cachix Deploy agents.' Paid tiers start at 50 GiB.","retry_when":null,"first_recorded":"2026-10-21"}},"binding":"none","binding_note":"no constraint of a named kind was recorded; the verdict rests on the quota sentence rather than on a named limit"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":5,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.extras.dead_end.retry_when","process"],["$.free_tier.notes","process"],["$.identity_cost.detail","defaulted"],["$.identity_cost.kind","identity-defaulted"],["$.per_object_cap.notes","not-extracted"],["$.per_object_cap.stated","not-extracted"],["$.retention.notes","not-extracted"],["$.retention.stated","not-extracted"]],"history":[],"drift":[{"kind":"duplicate-disagrees","subject":"storage/cachix","other":"storage/cachix-2","field":"verdict","a":"fails-quota","b":"fails-egress","detail":null}]}