mcrcon VS mcmap

This could possibly be done with Skript using yaml to tell it what to do on startup or shutdown. Although I would personally prefer using RCON like u/Mutated_Zombie mentioned. There exists cmd execs you could use in a batch script.

Why would I use this over mcrcon?

You can use rcon to run commands and filter the output. It's not pretty, but it doesn't require any kind of external service (also you need to write the scripts yourself).

If running on Linux, you could use a use mcron and add that to the systemd script

I used a slightly modified version of https://github.com/WRIM/mcmap/releases (I modified it to properly render blocks in TMCW, as well as improved the algorithm used to only render explored caves, which is the most unique feature of this mapping tool). A more up-to-date version can be found at https://github.com/spoutn1k/mcmap/releases (this is actually the original repository, unfortunately, they removed downloads for older versions, and it is 1.13+ only).

Otherwise, the Wiki has a list of mapping tools but none seem to go back to Beta versions and one of the only ones that I know was around back then is no longer available in that form unless it was archived somewhere (MCMap, which has a forum thread for a Mac OS port from 2010 (last updated in 2012) but the original thread is no longer accessible, and was updated to 1.3.1 the last I remember, and the latest version doesn't even support pre-1.13 versions and the original GitHub doesn't list anything older, there are numerous forks but I'm not sure if any are old enough (the oldest I've looked at go back 10 years and mention 1.2, which are unlikely to support older versions due to the Anvil file format update in that version), and many don't have releases).