This is a heatmap of every contribution made to an open source repo applying for RetroPGF since 2014
The x-axis is the day (starting at 2014-01-01 and going up to 2023-11-29) and the y-axis is the hour of day (starting at 00:00 and going up to 23:59 UTC)
For more info, see https://twitter.com/carl_cervone/status/1728541715542212705