Top ALTER GitHub Repositories & Tools (2026)

Privacy-first backups for your Mac, to storage you own.

Free, open-source CleanMyMac alternative for macOS. Native SwiftUI disk cleaner for app caches, node_modules, Xcode DerivedData and Docker usage - nothing is ever really deleted: it all goes to the Trash and stays undoable. No telemetry, no daemon, no subscription.

Desktop multicam recorder for macOS: records your screen and webcam in sync, then Claude Code or Codex edits the final video — shot selection, subtitles, graphics and SFX.

Self-hosted AI workspace with agents, skills, and tools (Gmail, Calendar) that runs entirely on your own provider API keys (BYOK). Bring your own keys — Groq, OpenRouter, NVIDIA, Hugging Face, Google AI.

Open-source Terraform Enterprise replacement

Publishes localhost services to the agentic web through self-hostable, trustless relays.

A SQL transformation engine that type-checks your whole pipeline and catches breaking changes before they run — branches, replay, column-level lineage, compile-time contracts, per-model cost. Adapters: Databricks, Snowflake, BigQuery, DuckDB. Single static Rust binary. Apache 2.0.

Open-source, self-hosted photo and video galleries for photographers and events, with client proofing, password protection, guest uploads, custom branding and Docker deployment.

A modern, open-source Full Calendar alternative for React. Month, week, day, and year views with drag-and-drop, horizontal and vertical resource views, and RFC 5545 recurring events — all MIT licensed.

All AI developers deserve to get paid. Turn your AI prototype into a paid SaaS with open-source infrastructure for usage billing, payments, attribution, affiliates, anti-abuse, and deployment.

Parseable is an open source, unified infrastructure observability platform built in Rust on a data lake architecture. It tracks logs, metrics, traces, and events across apps, agents, and systems, reducing storage costs by up to 90% through columnar telemetry compression.