Hottest Repos
RyanCodrai/turbovec — 1,533 stars today (6.9k total). New to digest and exploding. Rust vector index with Python bindings built on Google's TurboQuant algorithm. Fits 31 GB of float32 embeddings into 4 GB — and searches faster than FAISS. No train step, no codebook, no rebuilds. Online ingest, filtered search, pure local. Hand-written NEON/AVX-512 kernels. The RAG infrastructure layer just got a serious new contender. MIT.
NousResearch/hermes-agent — 1,117 stars today (185.7k total). The gravity well of the agent ecosystem keeps pulling. 11.4k stars this week. At this scale it's less a project and more a platform — hermes-webui (13.8k, +4.4k/week) continues building out the web surface.
Leonxlnx/taste-skill — 1,104 stars today (36.4k total). Still accelerating. 6k stars this week. The anti-slop trio (taste-skill 36k + impeccable 35.5k + stop-slop) now totals 80k+ combined stars — up from 74k three days ago. The "teach your AI taste" movement is growing faster than most standalone products.
mvanhorn/last30days-skill — 1,097 stars today (30.5k total). Crossed 30k. The "skills as products" poster child — a single agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web. Still pulling >1k/day after a week on trending. This is what sustainable open-source momentum looks like.
microsoft/pg_durable — 314 stars today (1.4k total). New to digest, highest momentum-to-size ratio today. PostgreSQL extension for in-database durable execution — define fault-tolerant workflows in SQL with
~>and|=>operators, and Postgres checkpoints each step. Crashes resume from the last checkpoint. No queues, no external orchestrators. Replaces the "pg_cron + jobs table + status columns" pattern. Rust, actively pushed. Part of Microsoft's new Azure HorizonDB. PostgreSQL License.
AI & ML
MemPalace/mempalace — 509 stars today (54.6k total). Third day in digest. The local-first AI memory system (96.6% recall@5, zero API calls) continues steady growth. With supermemory (26k, cloud-first) and now memanto (651, agent-first) also trending, agent memory is officially a three-horse race: local vs. cloud vs. active agent.
microsoft/VibeVoice — 303 stars today (48.7k total). Second day in digest. Microsoft's open-source "Frontier Voice AI" settling into a steady cadence at 48.7k stars. Combined with markitdown (147k), Microsoft has dominant open-source plays in both document processing and voice.
666ghj/MiroFish — 211 stars today (65.2k total). Swarm intelligence "predict anything" engine. Quietly one of the largest AI repos on GitHub at 65k and still growing steadily.
Open-LLM-VTuber/Open-LLM-VTuber — 2,273 stars this week (10.3k total). Fifth day in digest. Voice-interactive LLM with Live2D avatar. The companion AI category is now firmly established above 10k.
Developer Tools
refactoringhq/tolaria — 242 stars today (12.8k total). New to digest. Desktop app for managing markdown knowledge bases — files-first, git-first, offline-first. Built by the Refactoring.fm founder for his 10k+ note vault. Supports Claude Code, Codex CLI, and Gemini CLI setup paths. Think Obsidian but fully open-source and AI-native. Tauri + React. AGPL-3.0.
EveryInc/compound-engineering-plugin — 1,752 stars this week (20.3k total). New to digest. "Each unit of engineering work should make subsequent units easier." A philosophy-as-plugin: brainstorm → plan → work → review → compound learnings. Supports Claude Code, Codex, Cursor. The idea that agent workflows should accumulate institutional knowledge, not just ship code, resonated — 20k stars says so.
can1357/oh-my-pi — 2,318 stars this week (11.1k total). New to digest. Terminal AI coding agent with hash-anchored edits, LSP integration, browser tools, and subagent support. Multi-provider (Anthropic, OpenAI). Pushed today. The "alternative to Claude Code CLI" niche now has multiple serious entrants (goose 47k, oh-my-pi 11k, cline 63k). MIT.
heygen-com/hyperframes — 404 stars today (25.3k total). New to digest. Write HTML + CSS + animations → render deterministic MP4 video. Has agent skills for Claude Code, Cursor, Gemini CLI. HeyGen's open-source play to make programmatic video generation accessible. Apache-2.0.
dmtrKovalenko/fff — 983 stars this week (7.7k total). New to digest. Rust-based file search toolkit — frecency ranking, typo-resistant, git-aware annotations. Started as a Neovim plugin, now an MCP server for AI agents. Claims to beat ripgrep and fzf in long-running processes. Practical infrastructure.
Hidden Gems
microsoft/mxc — 223 stars today (705 total). Microsoft's sandboxed code execution system for running untrusted model output, plugins, and tools. Cross-platform (Windows/Linux/macOS), multiple containment backends from process sandboxes to full VMs, TypeScript SDK. Early preview but addresses the #1 concern with autonomous agents: safe execution. Rust + TS, MIT.
Makisuo/maple — 210 stars today (1,077 total). Open-source OpenTelemetry observability platform built on ClickHouse. Monorepo with SPA frontend, Effect-based API, OTLP ingest gateway, alerting worker, and even a mobile app. A credible open-source alternative to Datadog/Grafana for teams that want traces, logs, and metrics in one place without vendor lock-in.
moorcheh-ai/memanto — 67 stars today (651 total). Memory agent that's active, not passive — three operations (remember, recall, answer) with zero ingestion latency. Designed from the "six gaps" that AI agents themselves identified in their own memory systems. The agent-as-memory approach is philosophically different from MemPalace (local index) and supermemory (cloud API). Worth watching.
Notable Trends
The harness meta-game is stratifying. ECC (210k) is the dominant agent optimization system, compound-engineering (20k) adds a knowledge-compounding philosophy, harness (6.4k) generates entire agent teams. We're watching the emergence of a harness stack: performance layer → workflow layer → meta-factory layer. The question is which layer captures the most value.
Microsoft is shipping serious open-source infrastructure. pg_durable (durable execution in Postgres), mxc (sandboxed agent execution), VibeVoice (voice AI), markitdown (147k, document processing). Four distinct bets across the agent stack, all MIT/permissive. This is the most aggressive open-source push from Microsoft since VS Code — and it's targeted squarely at making agents production-ready.