GitHub - tobi/walgit
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Build Infrastructure
Summary
Casita is a pre-release, content-addressed object store for source code and build artifacts, built in Rust as the first standalone layer from Nix's Rust rewrite. It provides deduplication, verification, synchronization, and garbage collection.
Highlights
- First standalone layer split from Nix's Rust rewrite, designed to be usable independently of the full Nix stack
- Uses BLAKE3 content-addressed hashing to deduplicate immutable blobs and object records across projects
- Introduces an ArtifactStorage interface in Cargo that allows different backends for managing registry archives, Git dependencies, and build outputs
- Motivated by the growing storage problem in agentic development, where AI agents rapidly produce and discard source code and build artifacts
- Still pre-release with experimental Cargo integration; import and restore performance has not yet matched the filesystem backend
auto-generated
Context
Audience
Rust developers, build system engineers, Nix users, and teams dealing with build artifact storage and deduplication challenges, especially those working with AI-assisted or agentic development workflows
DomainBuild Systems and Package Management
Formatblog post and product announcement
Accessopen source Rust library and CLI
Source Overview
Casita is a pre-release, content-addressed object store for source code and build artifacts, distributed as a Rust library and CLI targeting Linux, macOS, and Windows.
It deduplicates immutable blobs and object records using BLAKE3 hashing and provides verification, synchronization, and garbage collection. It integrates experimentally with Cargo via an ArtifactStorage backend and is the first standalone layer split from Nix's ongoing Rust rewrite.
Topics
Related
Nix package managerBLAKE3 hashingCargo ArtifactStorageContent-addressed storageuv package managerGarbage collection for build caches
