20251121

 Watched something after midnight and fell asleep around 2:30. Got up at 7 to have breakfast and played games then as yesterday. Didn't play piano after lunch, but worked on query system. It's mostly done, and I will turn to two smaller tasks: rewrite markdown and reform error types. They are likely to take 2 week each. Slept after dinner and thus skipped the planned cycling exercise. Slept around 7 (4.5 + 2.5) hours and completed 3 pomodoroes for work today.