I haven't done it, as I am rather old school and don't want to introduce unknown/unwanted time smears to my music.
I do know that many have used a mic for calibration.
As for software, some use apps on their smartphone.
Please don't think I am a Luddite, but digital room correction is not a panacea for all the sound reproduction issues. It masks obvious issues, but in the end, is not the cure.
If you are looking for a simple sound correction for issues with a simple (non critical listening) system. Roon correction should be an easy way to go.
But, if you are really serious about sound reproduction, I would advise against it.
My 2.4 cents