Please see general remarks about this project in the top level README.
To start with NixOS on Turris please read install documentation for your specific board:
The board specific instructions provide you with hopefully working installation of the NixOS on Turris OS. The following articles should give you more info on how to manage it:
TODO: we should create articles about switch, router and hostapd setup but that makes more sense to be on official wiki.
Some additional topics: