Noob question: what's the deal with my connected drives not being accessible?

Thank you for taking the time to reply, I’m starting to get the picture here.

Is the UUID part optional?

I think I want to include the nofail option to avoid messing up with my boot, right? Worst that can happen this way is that the drives don’t get mounted and I have to troubleshoot from there, yeah? Also one is an internal drive, the other two are external, and I’ve read in your other article that you also have to leave that option in case I unplug them one day.

Now this is the part that was also confusing me but the second article will surely help. Remembering this from your linked article:

I’ll figure it out, but if I may ask one favor, could you give me an example of a row with permissions listed in the mount options?