Appwrite vs Rivet
Side-by-side trajectory, velocity, and editorial themes.
Appwrite hardens auth and broadens its framework and runtime surface as a Firebase alternative.
Appwrite is an open-source backend-as-a-service competing with Firebase and Supabase across auth, functions, storage, realtime, and hosted Sites. The recent cadence is broad and infrastructure-heavy: auth hardening (password strength, email policies), new realtime primitives (Presences), storage speedups, more build runtimes (Bun, Deno, Dart, Flutter), and a first-class React library. It also tightened free-tier economics by deleting long-paused free projects.
The platform is investing on two fronts at once — developer experience (React hooks, monorepo-aware Git build triggers, a Claude Code plugin) and backend breadth (presence, auth policies, faster uploads). The pattern is filling parity gaps with Firebase and Supabase while courting framework-native and agent-assisted workflows. Free-tier cleanup suggests attention to cloud cost discipline alongside feature growth.
Expect the React library to grow past auth into data and realtime hooks, and continued runtime and framework additions for Sites and Functions.
Rivet pivots from actor backend to a coding-agent OS, and is building the ecosystem to match.
Rivet began as an actor and serverless backend platform — RivetKit, Rivet Actors, Rivet Compute — and has spent the last month reorienting around agentOS, a WebAssembly-based Linux environment for running coding agents without a heavy sandbox. The June and July releases show both threads running in parallel: native language SDKs (Rust, Effect) for Actors, and a fast-maturing agentOS that now has its own package registry.
The center of gravity is shifting from hosting stateful actors to being the runtime coding agents execute inside. agentOS went from a v0.2 sandbox alternative to shipping a package registry and a sub-millisecond package manager in under two weeks, a sign Rivet wants to own the developer surface around agent execution, not just the compute underneath it.
Expect agentOS to keep accreting ecosystem pieces — more registry content and tighter orchestration — while the Actors SDKs settle toward maintenance. A likely next move is deeper coupling between agentOS and Rivet Compute so agents run on Rivet's own cloud.
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