Side project2026

Coast to Coast

A weather map for the Coast to Coast walk, built to be usable from a phone on the trail.


I walked the Coast to Coast in 2026, 300km from St Bees to Robin Hood's Bay, sleeping out most nights. Deciding whether to bivvy or find a roof meant knowing the forecast for the next stop, not the region.

So the map covers the standard overnight stops along the route, one forecast per stop, with rain bands and a combined day rating rather than raw numbers.

The part I like most is how it ships. The site lives in my notes vault. I edit a file in Obsidian on my phone, Syncthing carries it to a small server, a timer notices the folder changed and deploys it. No laptop, no commands, no CI.

What I did

  • An edit made on a phone is live in about two minutes, tested end to end on the walk itself.
  • The deploy curls the site before marking itself done, so a broken build leaves the previous version up rather than taking it down.
  • It waits a cycle for the file sync to settle first, which stops half-synced deploys shipping new HTML against old JavaScript.