While it may be tempting, take my advice, don't. Of all the things I have hosted, or tried to host over the years, it's not worth it. Pay Mastodon.host the $6/moth and call it good. Thank me later.
Working on a home lab can be enjoyable and rewarding. Some people do it to lean new skills, while others do it to run meaningfull tools. And then there is me, building stuff to fill the hours. At $100 a box on the second hand market, maybe I should try just painting 40K figures.