open source Nixie Tube clock
Here is a link to an open-source Nixie Tube Clock I developed for my LilyGo T-Display S3.
It also has code in it that allows you to use your computer / phone's browser to set up wifi access - i.e. the your network ssid and password do not have the be hardcoded in the sketch.
I wrote that part as an alternative to using ESP-Touch which seems to require that you use a 3rd party phone app - something I myself did not want to do as none (that I could find) were open source - I would rather just use my regular browser (in incognito mode).
Hope it will be of interest!