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Show HN: I created a disk usage explorer CLI

Show HN: I threw away my analytics dashboard and replaced it with 42 MCP tools

Show HN: Sylph – the open-source company brain behind my YC startup

Show HN: I built a local-first macOS transcriber

Show HN: KVBoost – chunk-level KV cache reuse for HuggingFace, 5–48x faster TTFT

Show HN: TLS Certificate Management and PKI

Show HN: Tight C, a systems language with 10 keywords

Show HN: Roughform, a free Browser-Based 3D Creation Tool

Show HN: Spec-Driven Development Workflow for Claude Code

Show HN: Pocket TTS running in (mobile) Safari

Show HN: Deputies, an open source background agent

Show HN: Free Fonts – a collection of 400+ original, open-source typefaces

Show HN: Traditional Card Game Website

Show HN: Baby's First Cards – real photo flash cards for toddlers

Show HN: AI Local Recorder – offline voice recorder with AI transcription

Show HN: Agent-estimate, how long a coding task takes, at agent speed

Show HN: Smithereen – an early-Facebook-style Fediverse server

Show HN: Lumox – Wirelessly mirror multiple iPhones on Mac – Ditching QuickTime

Show HN: A Turing machine simulating a Turing machine simulating a...

Show HN: Onda – a cross-platform alternative to DSView for DSLogic analyzers [video]

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