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Show HN: A lightweight mapping editor for improving MTB trails on OpenStreetMap

https://traileditor.app
3•kennethtransier•49m ago
I wanted to share a lightweight mapping editor I’ve built to make it easier to improve MTB trail data on OpenStreetMap. In general MTB trails on OSM could be greatly improved, especially when it comes to IMBA ratings and I wanted to lower the barrier to entry to contributing to OSM.

Key features:

* Load satellite, lidar or OSM GPS traces to verify trail paths * Dedicated keybindings for quickly tagging a trail's IMBA rating and other actions * Add, edit and split trails to improve trail accuracy * Circle a group of trails to add or update a trail network * Load all trails in a given state or region (US and Canada supported to start) * Upload to OSM as a changeset

Hope some folks find this useful, let me know what feedback you have!

Samon: Designing a Zen Garden Raking Puzzle

https://gwern.net/doc/design/2026-10-03-gwern-samon.html
1•networked•28s ago•0 comments

Serena OS: Modern operating system design meets Amiga computers

https://github.com/dplanitzer/Serena
1•doener•44s ago•0 comments

Brain does not process information and it is not a computer Essays

https://aeon.co/essays/your-brain-does-not-process-information-and-it-is-not-a-computer
1•Anon84•1m ago•0 comments

Show HN: Open Twin, a modelica-based simulator for real-world physical systems

https://open-twin.netlify.app/w/d5e756e1-4b43-415b-a10c-bb83fb98fe55
1•tgirotto•1m ago•0 comments

Formally deriving programs from specifications (Bird-Meertens) using Lean 4

https://satnam6502.github.io/bird-meertens/
1•matt_d•4m ago•0 comments

"Rising cost of memory," Microsoft explains why Windows 11 will use less RAM

https://www.windowslatest.com/2026/10/04/rising-cost-of-memory-microsoft-explains-why-windows-11-...
2•TMWNN•7m ago•0 comments

The Output-Space Hypothesis:Enumerative Equivalence Checking for Tensor Programs

https://arxiv.org/abs/2609.19611
1•matt_d•7m ago•0 comments

Ask HN: Are there AI models for generating sounds based on a text and reference?

1•onemiketwelve•11m ago•0 comments

LLM SEO tools in 2026: what each one tracks

https://picked.so/blog/llm-seo-tools
1•shdalex•11m ago•0 comments

Schneider Electric to buy industrial software group PTC for $23.7B

https://www.ft.com/content/2084f349-0829-4130-a5e6-b98929a6e633
1•teleforce•19m ago•0 comments

You're Leaving Compute on the Table

https://nishantjosh.dev/blogs/youre-leaving-compute-on-the-table/
1•ibobev•20m ago•0 comments

Whistleblower who flagged Lutnick's links to Epstein dies

https://www.thebanker.com/content/02286d53-0338-42ef-996d-5f7712b9f133
8•gravisultra•26m ago•0 comments

Becoming a Photographer

https://stanko.io/becoming-a-photographer-tIKMwUVuHnHG
3•ibobev•28m ago•0 comments

Ephemeral Testing

https://lemire.me/blog/2026/10/05/ephemeral-testing/
2•ibobev•29m ago•0 comments

Mark

https://colossus.com/article/mark-zuckerberg-profile/
2•bkudria•30m ago•0 comments

Por qué uso (y recomiendo) dominios .xyz numéricos para self-hosting

https://inti-tidball.writeas.com/por-que-uso-y-recomiendo-dominios-xyz-numericos-para-self-hosting
2•intimaria•31m ago•0 comments

Real reporter behind The Social Reckoning on what Aaron Sorkin's film gets right

https://www.reuters.com/world/us/real-reporter-behind-the-social-reckoning-what-aaron-sorkins-fil...
2•skibz•31m ago•0 comments

Nova Sprint. Coordinate AI sprints across multiple models and harnesses

https://github.com/mas-bandwidth/nova-sprint
2•gafferongames•32m ago•1 comments

Worth Building

https://armstr.ng/writing/worth-building
13•colinarms•36m ago•1 comments

Example.com Just Launched the Biggest Redesign in Decades

https://www.debugbear.com/blog/example-dot-com-redesign-history
21•jgx0•40m ago•16 comments

Food Atlas: Connections behind the dishes we love

https://knowledgeartist.org/pages/food-atlas
4•laybak•44m ago•1 comments

Where's the Quality?

https://catskull.net/wheres-the-quality.html
3•catskull•44m ago•3 comments

Unix – The Hole Hawg

http://www.team.net/mjb/hawg.html
2•embedding-shape•46m ago•1 comments

Mr Robot fsociety pumpkin cutting template [pdf]

https://decider.com/wp-content/uploads/2015/10/print-fsociety.pdf
2•sans_souse•46m ago•0 comments

I'm building a personal AI computer startup in Mumbai

https://x.com/gfaang97609
2•testingsaket•48m ago•0 comments

ChatGPT is adding real cartoonists' signatures to fake New Yorker cartoons

https://www.niemanlab.org/2026/10/chatgpt-is-adding-real-cartoonists-signatures-to-fake-new-yorke...
11•rdmuser•49m ago•0 comments

Show HN: A lightweight mapping editor for improving MTB trails on OpenStreetMap

https://traileditor.app
3•kennethtransier•49m ago•0 comments

Show HN: DenizliHub – 40 client-side web tools running 100% in the browser

https://denizlihub.com/
3•denizlihub•51m ago•0 comments

Iroh Global Content Discovery

https://www.iroh.computer/blog/iroh-global-content-discovery
6•birdculture•52m ago•0 comments

Modernize Every SQL Server to Azure SQL or Fabric DW

https://www.brentozar.com/archive/2026/09/im-just-gonna-leave-this-here/
2•BLKNSLVR•53m ago•0 comments