Show HN Spotlight — Week of the Maker

a VLM reads the HTML and hallucinates the page

Picked for: a clean, sharable one-liner.

Normal Chess, on a 1D board

Picked for: shippable in a weekend.

I've flown gliders a little but never had a reason to get into the underlying aerodynamics. This sim put together as a learning experience, using an ancient pamphlet on gliding paired with a few evenings of LLM time. The sim: - Controls with stick, ailerons, elevator, rudder, and airbrakes — W/S pitch, A/D roll, Q/E yaw, B airbrake - Attempts to accurately model angle of attack via interaction of wing and air movement to give lift/drag - Built on a real glider's numbers. Loosely modelled on an ASK‑21-class trainer: ~33:1 glide ratio, ~0.6 m/s minimum sink - To stay aloft, you hunt for lift — thermals rising off sun-warmed ground + ridge lift where wind is deflected up terrain, etc. Glider pilots: tell me where the behaviour feels inaccurate.

Picked for: turns a tedious workflow on its head.

This was mostly vibe coded over the bank holiday but the funny thing is that it was derived from an existing stale iOS swift project I started and never finished nor shipped that was built by hand, over the length of multiple months. It's just a ui that asks for your location and shows platform arrivals on your closer tube and overground stations using tfl api. Learned a lot about the setting up of stuff and all my api modelling and schemas hopefully went into shaping this. But it's quite impressive that now any feature can be built and deployed within seconds by claude remotely.

Picked for: weirdly specific — and that's the point.

While the U.S. is celebrating Memorial Day, it seems like a good time to share this genealogy tool I made. It can show the entire family tree for a person in a GEDCOM file (all of their relatives and in-laws) without any crossing lines and with lots of control over the styling. I couldn't find any other software that does this, except maybe Gramps. Hopefully people will find it useful.

Picked for: ambient AI, not chatbot AI.

measure event latency on peers using synchronised clocks

Picked for: ambient AI, not chatbot AI.

Open-source validation loops for AI coding agents

Picked for: free-tier-first growth shape.

controlled AI repair loop that won't eat your migrations

Picked for: free-tier-first growth shape.

A real startup, ingested and listed unclaimed.

Picked for: classic Show HN energy.

Spotlight Search style Python interpreter

Picked for: classic Show HN energy.

local-first PDF editor (early)

Picked for: looks like a wedge.

AI-native database (vector, graph, SQL, AutoML, LLM)

Picked for: looks like a wedge.