Minimalist #CircuitPython Web Workflow config: phone browser connected via wifi to the same wifi router as an @adafruit QT Py ESP32-S3.
No connection to the internet or any other LAN is necessary. You can do CircuitPython REPL and file editing deep in the woods with this setup (as long as the battery lasts).
[See also: https://github.com/adafruit/circuitpython/issues/6795]
Or, if there is power available, an even more compact config for travel or on-the-go.