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Show HN: P-book – an interactive book for kids about recommendation algorithms

Show HN: I built AI native linktree app

Show HN: Kitty.cards – Create Apple Wallet cards online (no login)

Show HN: Playra

Show HN: Association rule mining on 21.6M poker hands

Show HN: Three deployable open source platforms from a solo builder

Show HN: Inner Warden, self-defending server with eBPF and AI

Show HN: SYNX – a new config format with active mod. Built for AI and humans

Show HN: Discover Indie Version of Popular SaaS Products

Show HN: I built a paper-based vault with m-of-n keys

Show HN: EnvMaster – inject encrypted env variables from your terminal

Show HN: A C/C++ IDE written in C from scratch with zero dependencies

Show HN: Vaultara Markets – multi-stage AI pipeline for daily investor briefings

Show HN: Git-surgeon – Git add -p for AI agents

Show HN: Foundations of Music (FoM)

Show HN: Burrow, a Gopher browser/proxy written in JavaScript

Show HN: ClaudeRank – Open-source token and concurrency widget for Claude Code

Show HN: What Did I Watch – I just published my first iOS app

Show HN: Autonomous Agent Built a Video Pipeline from One Prompt

Show HN: Reverse engineering a viral open-source launch (or: on zerobrew)

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