for the job offline phone apps
an app that keeps working on the job,
Built for both of the main phone platforms from one shared codebase. Storage is local-first: an entry is saved on the phone the moment it is made, changes wait in a queue while there is no signal and pass themselves on when it returns, and the rule for two edits to the same thing is agreed before it is needed.
Screens are sized for gloves and glare, and tried on old, low-end phones as well as new ones.
You hold an app that saves where the work is, with its source code in your account.