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canvas textBaseline "middle" centers on font em-box metrics, not visible ink — digits have no descenders, so they read as sitting too high in their boxes. Center on the actual glyph bounds instead, matching the technique already used correctly in Ūdens's drawRanges. Shared by Faktiskā and the older Kartes comparison map.
Weather Tool
Tool for downloading historical and real-time data from weather stations in Latvia. It aggregates and displays data for different time periods, cities, and weather parameters.
Setup
Rename .env-sample to .env and fill in credentials
Environment boundary
- Windows: source editing, review, and Git operations only. Do not compile, build, run containers, install project dependencies, or test the application here.
- Rocky Linux: the only development runtime; compile, build, run, seed, and test WeatherTool here.
- Ubuntu VPS: deployment target only. It receives the reviewed release artifact built and verified on Rocky; it is not a development or build host.
Run
docker-compose up --build --no-cache --force-recreate
Web
nginx proxy config
server {
listen 80;
server_name laikazinas.lsm.lv;
location / {
proxy_pass http://localhost:9090; # Forward requests to the Scala app
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
Rocky development runtime
// 1st terminal
podman-compose up postgres
// 2nd terminal
sbt run
// 3rd terminal
cd web/
npm run dev
Run one file
sbt "runMain grib.GribParserTest"
Backend Tech:
- scala: cats-effects, http4s, fs2, circe, scalatest
- postgres
Frontend Tech:
- SolidJS
- Vite
Fly commands
// suspend instance
fly scale count 0
// check display
fly ssh console
df -h
fly scale memory 512