Nitterium – A privacy-focused Android app and wrapper for Nitter
Nice Jetpack Compose UI, but it's just a wrapper around Nitter.

Dots nails a clear product boundary: not full-precision sharing, not nothing — just city/place-level presence with audience controls and custom 'special places'. The site uses concrete micro-stories (Vermont, Back Bay) and features like nearby notifications to sell the workflow. Biggest questions: it's iOS-only and the privacy/anti-abuse mechanics (how fuzzy the locations are, spoof resistance, opt-in audience controls) are unexplained — that's the product risk, not the copy or UI.
Casual social users and friend groups who want privacy-preserving location sharing for serendipitous meetups (travelers, local communities)
Nice Jetpack Compose UI, but it's just a wrapper around Nitter.
Privacy-focused BP tracker without cloud—competes directly with MyFitnessPal Health and Withings Connect.
Another job board aggregator, but local storage and no signup protect privacy.
Turns local Claude Code logs into privacy-preserving 30-minute token summaries and publishes only counters — no prompts, files, or project names ever leave your machine. The combo of a tiny CLI with SessionEnd hooks and a Cloudflare Worker dashboard (per-group pages, auto-refresh, opt-in global board) is a smart, low-friction approach to sharing usage data. If you care about tracking AI spending socially, this scratches that exact itch without the usual signup overhead.
Character.ai clone with privacy claims but no self-hosting option.
Uses a headless Playwright browser to render candidate privacy pages, extract both mailto links and inline addresses, rank candidates, and emit per-site JSON or plain email lists. Responsible-scraping defaults (robots.txt, request delay, resource blocking) are practical touches you don't always see in hobby scrapers. It stops at discovery — no contact-form parsing or automated request delivery — and Playwright's install/runtime overhead makes large-scale runs heavier than a simple crawler.