Ask HN: How to find the energy for side projects after day job?

I started doing a remote job and as I don't have to commute anymore, I have some time left after work hours. I'm a software developer, and most of the days are fully packed. Considering the few hours I'm getting, I am thinking about being productive on side projects after my day job, but most of the days I feel too drained to do anything.

People who are successfully at being highly productive in side hustles after demanding jobs, how do you do this? Any actionable advice?