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MIT Rust version control system from Epic Games — centralized, content-addressed, and built for repositories that combine source code with large binary assets. Repository state modeled as Merkle trees plus an immutable revision chain, with on-demand hydration, sparse workspaces and chunked dedup for big files. 5.5k stars in its first month on GitHub
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Hosted Hacker News-style aggregator for independent personal blogs — currently surfacing posts from over 5,000 small-web sites across Tech, Life, Gaming, Culture and Writing. Human curation plus voting, RSS feed and Fediverse output, daily and weekly briefings, no algorithmic ranking
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GPL-2 browser port of Quake (1996) by LayoutitStudio, rendered with their PolyCSS 3D engine instead of WebGL. Single-player and multiplayer modes, level selection, configurable controls and audio, runs in any modern browser
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MIT iOS app from Mysk that surfaces what native iPhone apps can actually see about you — installed apps, device fingerprinting signals, contact and clipboard access. Written in Swift, App Store release plus self-build, 1.1k stars in two weeks
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Free hosted vocabulary game by HN user abnry — walks you through about 170,000 English words ranked by frequency, asking which ones you recognise. Cloud Run-deployed, no signup, returns an estimated vocabulary size at the end
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Hosted novelty site that queries many frontier and small LLMs in parallel for your name, clusters the responses and reports how strongly each model recognises you. Built in a few weeks by turtlesoup and a design partner as an "off-web traffic" probe
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Strivemath is now hosting the just-open-sourced trinket.io (CC0, repo `trinketapp/trinket-oss`) for free at trinket.strivemath.org after the original service shut down. In-browser Python, HTML/CSS/JS and block-based code editor used widely in classrooms
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Apache-2.0 Go self-hosted file sharing on top of any S3-compatible backend, positioned against WeTransfer, Dropbox and Palmr. v0.6.0 adds in-UI preview for images / video / text, bulk download, and LDAP as an auth provider. 625 stars
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AGPL-3 open-source Discord-style chat platform — TypeScript / Erlang / Rust polyglot codebase with VoIP, screen sharing, and a Flutter mobile client. This week ships full self-hosting support (pre-built Docker images, operator docs) and brings all internal development back to public repos. 9.3k stars
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AGPL-3 Go tool by overflowy that takes a clean PDF and renders it to look scanned — adds rotation jitter, JPEG artefacts, paper texture and shadows. Ships as a CLI plus a fully client-side browser version compiled to WebAssembly. 279 stars
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Closed-source YC-backed team email app that "splits" your inbox into Primary / VIP / Needs Reply, drafts replies in your voice and schedules follow-ups. Free tier with 5 seats and 3 follow-ups per week, Pro at $20/seat/month and Max at $60/seat/month (both billed yearly). Took the top spot on Product Hunt's weekly leaderboard
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Closed-source Mac and Windows desktop app from Goldfish AI Inc. — press the Option key anywhere you're typing and it drafts a reply using a tone profile of your past writing. Free during alpha. Took second place on Product Hunt's weekly leaderboard