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SPECIFICTION
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NixCI

nix-ci.com

From $36/mo Free plan WebAPISelf-hosted
Visit nix-ci.com
Spec score 8.1 #23 of 58 in Continuous Integration Software

Spec sheet

Purpose
NixCI is a continuous integration service for projects that use Nix, and can run CI with zero configuration when a repository has a flake.nix.Read 11 Oct 2026 · nix-ci.com
Deployment
NixCI can automatically deploy code after a suite succeeds.Read 11 Oct 2026 · nix-ci.com
Trial
New users receive a 14-day trial on the demo system; builds stop when it ends unless the account is upgraded.Read 11 Oct 2026 · nix-ci.com
Support
The site lists [email protected], and paid Hosted and Self-Hosted plans include priority support.Read 11 Oct 2026 · nix-ci.com
Automatic builds
The demo builds all flake packages, devShells, and checks and caches builds for subsequent commits.Read 11 Oct 2026 · nix-ci.com
Caching
NixCI can automatically pull from and push to Cachix when configured with a cache name, public key, and authentication token or signing key for pushing.Read 11 Oct 2026 · nix-ci.com
Data handling
Hosted builds run in isolated temporary directories, worker connections use TLS, and workers are wiped before running a job for a different owner.Read 11 Oct 2026 · nix-ci.com
Git forge integrations
NixCI integrates with GitHub, GitLab, and Codeberg, including self-hosted GitLab and Forgejo/Gitea instances.Read 11 Oct 2026 · nix-ci.com
Hosted runners
Hosted workers run jobs on powerful machines without an upfront cost.Read 11 Oct 2026 · nix-ci.com
Local reproduction
Builds are locally reproducible with a single command.Read 11 Oct 2026 · nix-ci.com
Privacy and compliance
The privacy policy says it is intended to comply with the EU GDPR and Swiss Federal Act on Data Protection.Read 11 Oct 2026 · nix-ci.com
Retention
Build logs are retained for 60 days, build metadata for 90 days, and cached artifacts are automatically deleted after 90 days, subject to earlier garbage collection.Read 11 Oct 2026 · nix-ci.com
Secrets
Secrets are supplied to tests and deployments as environment variables, and NixCI provides special handling for SSH keys.Read 11 Oct 2026 · nix-ci.com
Self-hosting limit
NixCI is not open source; self-hosting packages are available by contacting the maker, while any subscriber may self-host workers.Read 11 Oct 2026 · nix-ci.com
Tests
Impure tests can run with secrets and internet access.Read 11 Oct 2026 · nix-ci.com

Plans and prices

FOSS Free Free; hosted workers $0.33/hr For open source projects · own workers or hosted workers billed hourly · automatic caching Read 11 Oct 2026 · nix-ci.com
Hosted $36 a month $36 per developer per month + $0.33/worker-hr Unlimited private repos · managed infrastructure · hosted or own workers · full cache access · priority support Read 11 Oct 2026 · nix-ci.com
Self-Hosted Priced on request Custom; contact [email protected] Run on your infrastructure · own workers and caches · priority support · SLAs available Read 11 Oct 2026 · nix-ci.com

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Where Specifiction places it

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