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Show HN: Offline-first UK train planner

https://railraptor.com
2•marcusdev•1h ago
Hey HN! I'd like to share my personal experiment with a different way of finding train journeys across the UK.

When I book flights, I use sites like Kiwi and Skyscanner for flexible searches - multiple airports, custom connections, creative routes, etc. But rail search feels oddly constrained. All the UK train operators offer basically the same experience, and surface the exact same routes. I always suspected there were better or just different options that weren’t being shown. Where is the "Skyscanner for trains"?

After digging through the national rail data feeds, I decided to have a go at building my own route planner that runs completely offline in the browser. This gave me the freedom to implement more complex filters, search to/from multiple stations, and do it without a persistent network connection.

Now I'm finding routes that aren't offered by the standard train operators, connecting at different stations, and finding it's often easier to travel to different stations (some I'd never heard of) that get me closer and faster to where I actually want to go!

It's still a little rough and I'd like to add more features such as fares, VSTP data, and direct-links to book tickets, but wanted to share early and get some initial feedback before investing more time into it. So, thanks in advance - let me know what you think.

Mathematical framework maps landscape of student knowledge via short quizzes

https://phys.org/news/2026-03-mathematical-framework-landscape-student-knowledge.html
1•Brajeshwar•1m ago•0 comments

Show HN: Running AI agents across environments needs a proper solution

https://github.com/liquidos-ai/Odyssey
2•human_hack3r•2m ago•0 comments

Delve.co and SoC Type 2 Compliance Scandal and Audit

https://www.kaggle.com/datasets/dheerajmpai/delve-data-leaks
1•dheerajmp•2m ago•0 comments

Cortex – Local-first AI memory engine, beats Mem0 on LoCoMo, encrypted, free

1•gambletan•2m ago•0 comments

Show HN: Claude's Code – tracking the 19M+ commits generated by Claude on GitHub

https://www.claudescode.dev/
1•phantomCupcake•3m ago•0 comments

Turn any REST API into an MCP server. No code required

https://github.com/Work90210/APIFold
1•KyleFuehri•5m ago•0 comments

PetClaw: A Desktop Pet Companion That Works 24/7

https://petclaw.ai/
1•limoce•6m ago•0 comments

New digital hall passes track bathroom breaks, gather data in NYC schools

https://gothamist.com/news/new-digital-hall-passes-track-bathroom-breaks-gather-data-in-nyc-schools
1•geox•8m ago•0 comments

Archive.is Reads Bitwarden Data?

4•ppap3•9m ago•0 comments

Lexical Analysis of Markdown in Go

https://xnacly.me/posts/2023/lexer-markdown/
1•ibobev•9m ago•0 comments

Zbot – an embedded AI agent running on Zephyr RTOS

https://github.com/LingaoM/zbot
2•menggithub•11m ago•1 comments

Detecting file changes on macOS with kqueue

https://www.vegardstikbakke.com/kqueue/
1•v3gas•11m ago•0 comments

A unique NASA satellite is deorbiting – this team is trying to rescue it

https://arstechnica.com/space/2026/03/a-unique-nasa-satellite-is-falling-out-of-orbit-this-team-i...
1•agos•13m ago•0 comments

DHG: Deep learning library for both Hypergraph Neural Networks and GNN

https://deephypergraph.com/
1•teleforce•16m ago•0 comments

We've Been Underestimating Flying Foxes

https://www.nytimes.com/2026/03/24/science/weve-been-underestimating-flying-foxes.html
1•Brajeshwar•16m ago•0 comments

Show HN: Danube – AI Tools Marketplace

https://danubeai.com
2•preston25•18m ago•0 comments

AI for Children: From Game Addiction to Creative Agency

https://iamsweeper.com/2603-ai-for-children-from-game-addiction-to-creative-agency/
1•kkaatii•18m ago•0 comments

Nanobrew: The fastest macOS package manager compatible with brew

https://nanobrew.trilok.ai/
3•syrusakbary•18m ago•0 comments

Ask HN: Where do you get OS notification sounds that don't sound terrible?

3•andrewthornton•22m ago•1 comments

Russia launches their own Starlink

https://www.bloomberg.com/news/articles/2026-03-24/russia-puts-first-internet-satellites-into-orb...
2•phasnox•23m ago•0 comments

Show HN: A Chrome extension for searching and pining and exporting ChatGPT chats

https://chromewebstore.google.com/detail/powertools-for-chatgpt-pi/gkpapfalijlmadhkoclojfgmijeafnfi
1•the12appguy•25m ago•0 comments

The Good King Problem: Anthropic, Twitter, and Leadership-Dependent Architecture

https://www.wanderingwonderingstar.com/p/undertow-002-the-good-king-problem
1•jlzsignal•25m ago•0 comments

The Battle for the Billable Hour

https://lexifina.com/blog/the-battle-for-the-billable-hour
1•alansaber•26m ago•0 comments

Show HN: Kanna – OSS Web UI for Claude Code and Codex with Embedded Terminals

https://github.com/jakemor/kanna
1•jakemor•30m ago•0 comments

Hypergraph Computation

https://link.springer.com/book/10.1007/978-981-99-0185-2
1•teleforce•31m ago•0 comments

The Co-Blub Paradox

https://reasonablypolymorphic.com/blog/coblub/
4•hargup•32m ago•0 comments

Musk's Terafab Fever Dream Exposes Reality of the AI Chip Crunch

https://www.bloomberg.com/news/articles/2026-03-24/musk-s-terafab-fever-dream-exposes-reality-of-...
1•Brajeshwar•33m ago•0 comments

Show HN: Using Claude Code history to predict your next messages while you sleep

https://workovernight.com
1•yaoke259•38m ago•0 comments

Show HN: AgentContract – ESLint for AI agents - Declare what your AI can||can't!

https://github.com/agentcontract/spec
1•MMO_•40m ago•0 comments

Minute-by-Minute Breakdown of the Fatal LaGuardia Crash

https://www.wsj.com/articles/see-a-minute-by-minute-breakdown-of-the-fatal-laguardia-crash-63008544
2•RyanShook•41m ago•0 comments