As far as an overview, it does not require much. The program is a single stand-alone executable file. A configuration file gets generated when you run it the first time. You will need to enter your SIGNUM 12-word key (or create a new one) to associate your wallet.
If you want to use BTDEX for mining, it is a bit more complicated and you can get help from whatever pool you select to work with.
As far a trading on BTDEX, there are some good videos that can help:
How to take a cross-chin offer on BTDEX:
https://www.youtube.com/watch?v=GppDPWWXKfkYou can also join the discord discussion group for specific questions on mining or trading.
https://discord.gg/VTHSxgn9(Moderator: Sorry the above is a shortened link and is against the rules, I do not know how to post a discord invite otherwise!)