Same here, also having a 4-day work-week planning to run some sort of side-project. Actually all i do is fixing stuff of previous side-projects, setting op PoC's for new projects en creating a big pile of poo.

Besides that, dogs, cats and child need attention all day long, so sitting at home does not work at 1 day a week.

Now i am planning to give all that up, and just add the day to my work-week.

A full time job, without sideprojects, sounds more comfortable than a mess of private-work-life. It keeps your head spinning all day, not reaching the goals you imagined.

I am not able to take all day working on my own projects, so this seems like the only option to play safe and clear my head.