Fly.io

Fly provides the public HTTPS edge through its proxy, and a Fly Volume gives Composery a persistent /data. No Caddy.

Recipe: templates/fly (fly.toml).

Deploy

# from the templates/fly directory
fly apps create composery            # or: fly launch --no-deploy --copy-config
fly volumes create composery_data --size 10 --region iad
fly deploy

Open https://composery.fly.dev/ide/. Register the initial password in the browser, or set one as a secret:

fly secrets set COMPOSERY_PASSWORD=example

Notes

• A Fly Volume is pinned to a single Machine. Run one Machine - do not scale this app horizontally against the same volume (persistence is a single writer).
• auto_stop_machines is off so an idle editor session is not stopped mid-use. Set it to "stop" with min_machines_running = 0 if you prefer scale-to-zero and accept cold starts.
• The volume and app name must match what you create; edit fly.toml if you rename either.
• Take a volume snapshot before major image upgrades.