Show HN: Helios – what plug-in solar could generate for any address in Britain https://ift.tt/gB3fPvb

Show HN: Helios – what plug-in solar could generate for any address in Britain Plug-in solar panels (no electrician needed) have just become legal in the UK and will go on sale soon. Helios estimates how much electricity a typical installation could generate at a given address and what that's worth against your tariff. It uses UK government LIDAR data to reflect the actual skyline, so it knows whether there's a building or a hill blocking the sun. Caveats: - Outside LIDAR coverage (most of Scotland and Wales) it falls back to a synthetic horizon (less accurate). - Trees and recent developments (post-2022 or so) may not be in the data, and some address placements could be off (geocoding via OSM). Feedback on the shading model especially welcome. https://ift.tt/4Km3PRU May 30, 2026 at 08:08AM

Show HN: I built an Android OS in the browser https://ift.tt/5jsNUIL

Show HN: I built an Android OS in the browser https://mobilegym.dev/ May 30, 2026 at 02:40AM

Show HN: VT Code – open-source terminal coding agent in Rust https://ift.tt/Wrj8Gh1

Show HN: VT Code – open-source terminal coding agent in Rust https://ift.tt/QgoR5BD May 30, 2026 at 12:07AM

Show HN: Compile-time model-id validation with declared capability https://ift.tt/RTi07ZI

Show HN: Compile-time model-id validation with declared capability https://ift.tt/ma9FCw6 May 26, 2026 at 11:20AM

Show HN: Terraforming game where the Python code you write IS the gameplay https://ift.tt/ukSgqEc

Show HN: Terraforming game where the Python code you write IS the gameplay https://ift.tt/iMf3APh May 29, 2026 at 06:24AM

Show HN: Mira – Search for files semantically – no exact filenames required https://ift.tt/XEnMBaK

Show HN: Mira – Search for files semantically – no exact filenames required Would appreciate a star (and happy for ideas on improving indexing speed/embedding quality)! https://ift.tt/BwR7yVx May 28, 2026 at 08:37PM

Show HN: Reassign – a 24-hour dial for planning your day https://ift.tt/o3zsbJd

Show HN: Reassign – a 24-hour dial for planning your day For years I've used paper and a printed clock to organise my day. Found it way better than any list or timeline app. Played around a bit and made a digital clone to speed things up: Reassign.app (best experience is on desktop) Anyone else think of their day as a circle rather than a list? edit: it also has MCP integration ( https://ift.tt/quAJzyk ) — my Claude already connects to Linear and Calendar, so I use it to start and plan my day. I can quickly get a skeleton of a day out and then polish until done. https://reassign.app May 28, 2026 at 06:25AM