Gource 2021-10-26 alpha3
The L12k project is all in Git source control There's a tool called Gource that'll spit out videos like this, which let you visualize all the change history.
Every flash is me changing something and saving it away. 10 days is 1 second; if nothing happened for 3 seconds it skips to the next commit.
This is 162 seconds long, so you're watching well over 4.44 years flash by.
commit 525e7a1af5e507510ae05edac9df4018ca7dac7f