Cheap room sensors plus a report generator that turns a winter of temperature and humidity data into evidence a tenant can send a landlord.
A self-hosted log analyser that verifies AI crawler traffic, shows what it takes, and measures the referrals that come back.
A browser extension that records the API responses your app actually receives and exports them as redacted, typed test fixtures.
A hosted API that ingests every transit agency in a metro area and serves one consistent schedule and arrival endpoint.
A plug-in sensor that records mains outages, sags, and frequency drift in your home, so you can prove what the grid is doing to your house.
A self-hosted scanner that crawls your company drive, scores every workbook on how much it behaves like production software, and ranks the risk.
A desktop database console that estimates blast radius, forces transactions on prod, and logs every statement you run against live data.
A cheap doorway sensor and dashboard that gives small retailers hourly visitor counts and conversion rates without recording anyone.
A dashboard that reads your Stripe data and warns you months before you cross a sales tax or VAT registration threshold in any jurisdiction.
A service that reads your Postgres schema and generates referentially consistent seed data, so dev and CI stop running on stale copies of production.
A seatpost sensor and companion app that scores how rough every street you ride is, then draws it on a map you can act on.
A CLI that joins your AWS cost report to Terraform state so every line item points at the module, file, and commit that created it.
A CLI that runs EXPLAIN against a shadow database to catch table locks, missing indexes, and full scans in migrations before they hit production.
A bedroom sensor node that logs temperature, humidity, CO2, light, and noise overnight, then correlates conditions against your sleep tracker's score.
A mobile app that scans receipts with on-device OCR, tracks warranty expiration dates, and reminds you before coverage runs out.
A self-hosted tool that periodically restores random files and databases from your backups into a scratch environment to prove they actually work, not just that they exist.
A browser extension that logs prices on every product page you visit and alerts you when an item drops below its historical low, stored entirely locally.
A mobile app that logs symptoms alongside food, sleep, and activity, then runs simple statistics to surface likely triggers for chronic conditions like migraines or IBS.
A self-hosted tool that connects to your SaaS admin APIs, flags unused seats and duplicate tools, and estimates monthly savings before renewal.
An ESP32-based inline USB-C monitor that logs real-time voltage, current, and wattage to a local web dashboard — useful for auditing chargers and understanding device charging behavior.
A Docker-deployable dashboard that pulls MRR, churn, and LTV from Stripe, Gumroad, and Paddle into one view — no third-party analytics subscription needed.
A terminal UI app that lets developers open any SQLite file, browse tables and schemas, and run arbitrary SQL queries — all without leaving the command line or installing a GUI.
A web app that ingests customer feedback from multiple inboxes, clusters it into themes with an LLM, and surfaces a structured weekly digest so product teams stop missing signal buried in email.
A web app that runs DuckDB in WebAssembly so analysts and developers can drag in CSV files, query them with SQL, and export results — no server, no signup, no data leaving the browser.
A browser extension that extracts and logs pricing tiers from any SaaS pricing page into a local store, so product managers can track competitor pricing changes over time without manual copy-paste.
A sub-$40 ESP32 sensor kit paired with a self-hosted web dashboard to track CO2, particulates, and VOCs in your home — no cloud account required.