Instead I started to buy solar farms from my yearly xmas bonus. Invest 40K (10K bonus + 30K loan) -> 6000K/year. Net -- post costs & taxes. On average the loan was paid off in 6 years (thanks to low interest rates). From there on it's pure revenue.
Rinse repeat. Not even accounting for the free tax credits I get out of the investment.
Just doing my planning for the '23 investment. If I stop doing anything right now the last loan will be paid off in 2030 (interest rates are up a bit), and I will be making ~5K/month. Net. "Forever".
I use the time I gained for free work on important projects.