Bitrise vs Harmonia

Bitrise is a mobile DevOps platform that covers development from planning through monitoring. Bitrise CI automates app builds and tests, then deploys mobile apps. Its integrations catalog lists more than 400 ready-to-use workflow steps, grouped across Android, Cordova, Flutter, Ionic, iOS, Java, Kotlin Multiplatform, macOS, React Native, web, and Xamarin. Release Management handles iOS and Android test distribution and store release workflows. Build Cache supports Bazel, Gradle, and Xcode, and integrates with Bitrise CI, CircleCI, GitHub Actions, GitLab CI, and Jenkins. The free Hobby plan is for a one-person team, with build credits for a small project a few times monthly. Starter begins at $89 a month when billed annually and allows up to four concurrent builds. A 30-day trial includes Pro capabilities and 500 builds total. Bitrise says builds run on clean, isolated virtual machines and files are destroyed afterward; enterprise options include dedicated or self-hosted infrastructure, including in a customer's AWS account, VPC, and region.

Harmonia is free, open-source software for serving a Nix store as a binary cache over HTTP. Written in Rust for Linux self-hosting, it supports HTTP range requests for NAR streaming and streaming build logs. The /serve// endpoint can provide package contents and discover index.html to serve websites directly from the Nix store. Harmonia can transparently compress content with zstd and provide TLS when no frontend web server is used. Documentation covers a NixOS module and nginx HTTPS frontend configuration for a public cache. Narinfo signing is disabled unless private signing-key paths are supplied. Prometheus metrics are available at /metrics, with a Grafana dashboard included in the repository. Since version 3.1.0, metadata is read directly from db.sqlite without a nix-daemon connection. Version 3.3.0 adds harmonia-gc for removing store garbage while nix-daemon builds. It uses the MIT License.