MCPT (which stands for the Mackenzie Computer Programming Team) is the programming club for my high school. I served as an executive for two school years (as vice president of judge during the 2019-2020 school year and as president during the 2020-2021 school year). During this time I maintained and re-architected the online judge for the 2020-2021 school year, wrote dozens of competitive programming problems, hosted a Minecraft server, and even got to help host ECOO.
The architecture of the online judge during the 2020-2021 school year was quite a curious thing, fuelled by requirements determined by an (IMO) unjust amount of paranoia (it was a fun year). If you're interested email me and I may add more details here.