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Self-hostable team chat platform from Hendrik Mans, shaped like Discord with channels, voice and video calls, screen sharing and per-user encryption at rest. Open-sourced on July 8 after a year of private development, with the server under AGPL-3.0 and the frontend and protocol definitions under Apache-2.0. Self-hosting is free with no feature gating; the paid Chatto Cloud hosting tier is billed as the only business model and has not opened yet. 1.6k stars
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AGPL-3.0 rewrite of PostgreSQL 18.3 in Rust by Michael Malis, disk-compatible enough to boot from an existing Postgres 18.3 data directory, shipping as a Docker image with a browser WASM demo. Read the claims carefully. The published v0.1 matches Postgres output across more than 46,000 regression queries, while the 100%-passing and faster-than-Postgres build the headline describes is a newer version the README says is not yet published. Not production-ready by the author's own account. 2.6k stars
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Free Chrome and Firefox extension from Josh Pigford that strips pseudo-brand junk out of Amazon search results so you see established brands instead. It checks listings against a daily-refreshed database of more than 5,000 real brands and scores unknown names for the tells of a made-up one, such as all-caps consonant runs and vanishing vowels, with three strictness levels and per-brand trust and block overrides. Everything runs locally in the browser with no accounts, no tracking and no affiliate links. Source-available rather than open source under the Functional Source License, which converts to MIT after two years. 1.8k stars
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Free daily browser word game where you unscramble one set of letters into the target word against a 30-second clock, 18 words a day, ending in a shareable Wordle-style score. Closed-source and published anonymously by the maker of Zanagrams, with no account, no ads and no paid tier. Topped Show HN for the week
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Apache-2.0 single-file C inference engine by JustVugg that runs the 744B-parameter GLM-5.2 on a consumer CPU with no GPU, keeping the roughly 10GB of dense layers resident in RAM as int4 and streaming the routed experts off NVMe on demand through an LRU cache. Remarkable as engineering rather than as a daily driver, since the author measures 0.05 to 0.1 tokens per second on his own laptop and the repo carries an explicit SSD-wear warning. 7.5k stars
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Apache-2.0 local-first desktop assistant from Rowboat Labs that indexes your email, meetings, notes and files into a knowledge graph stored as plain Markdown on disk, then layers on a Gmail client that pre-drafts replies, a meeting notetaker, a notes system and a panel that drives multiple Claude Code or Codex instances. Local models work through Ollama or LM Studio, transcription and voice are optional cloud add-ons, and PostHog analytics is wired in with no documented opt-out. Free, no paid tier
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Closed-source AI video editor for interviews, podcasts and other talking-head footage, built by a founder team of career filmmakers. Describe the cut in plain language and it assembles a multi-track timeline with captions, B-roll, music and voiceover, then exports XML into Premiere or Resolve so the timeline outlives the app. Runs inside ChatGPT, on desktop and on the web. Free starter credits, then $25/mo for 100 credits or $100/mo for 400, priced directly in Seedance and Nano Banana generation units. Product Hunt's number four for the week
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Apache-2.0 workspace for building and running multi-step LLM agent workflows on a visual canvas, from Sim Studio, with roughly 1,000 integrations across Slack, Notion, Gmail and Salesforce and deployment as APIs, cron jobs or chatbots. Formerly Sim Studio. Free tier of 1,000 credits a month, then $25 and $100 per user monthly; the pricing table lists self-hosting as an enterprise feature even though the licence does not restrict it, and the credit unit is never defined. 29k stars
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AGPL-3.0 local-first investment and net-worth tracker by afadil that keeps your portfolio on-device, with desktop, iOS and self-hostable web server builds. Version 3.6 adds an MCP server so agents such as Claude Desktop can query the portfolio through scoped tokens, OIDC single sign-on for self-hosters, explicit short-position tracking and translation into five languages. The optional Wealthfolio Connect device sync and brokerage import is a paid subscription from $3.99/mo. 8.2k stars
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BSD-2-Clause passkey-only OpenID Connect provider by Elias Schneider, the deliberately small option next to Keycloak or Authentik. This release swaps its hand-rolled OAuth logic for Ory Fosite, adds scoped OAuth 2.0 APIs and per-client consent skipping, and lands it on the OpenID Foundation's certified list for the Basic, Config and Form Post profiles. Passkey-only means there is no password fallback, so account recovery rests on enrolling a second passkey. Free, no paid tier. 8.4k stars
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AGPL-3.0 self-hosted music request and discovery app by Harvey Bragg, renamed from Musicseerr in v2.0 when it dropped Lidarr and took over library management itself, scanning, fingerprinting and tagging files directly. Version 2.3 adds Free Music, which pulls Creative Commons and public-domain releases from the Internet Archive so requests work with no download client configured at all, plus drag-and-drop import of purchased files and where-to-buy links that carry optional affiliate tags. 972 stars
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AGPL-3.0 self-hosted collaborative bookmark manager that archives every saved page as a screenshot, a PDF and a readable copy. This release is mostly mobile, adding highlighting and annotation in reader view, a notes and highlights browser, and an offline mode that pre-downloads preserved formats rather than only opened links. Server-side it roughly halves idle memory and the Docker image, and adds a generic OIDC provider for self-hosters. The maintainers flag it as a security release worth updating for. Paid cloud from $3/user/mo. 19k stars