Jesus Christ sj on Nostr: can you explain it to me like im a five year, old how i can or if i can support nostr ...

can you explain it to me like im a five year, old how i can or if i can support nostr somehow? is it just supporting the devs or something? also, is nostr completely open as in you can post whatever you want? does it depend on relays or something? i am going to try to look into it all and i want to start trying to help nostr out because i like what i see here. i cant do much but maybe little by little. i have been telling people about it. i came from gab and gab is absolute trash now so im telling people that are unhappy with it to come here. im new to all of this and trying to speed up my knowledge on it all. i see a bunch of bitcoin stuff and i never touched that stuff so that;'s something else i have to look into as well for all this, i guess? i see you are looking for donations maybe? what is it that you do in relation to nostr? any nfo you can provide is appreciated.