On the topic of touhou torrents, it's probably worth noting that new versions of the game packs have recently come out.

The Touhou98 Experience 2.0 (just 1-5)
https://nyaa.si/view/1743332
(includes the dosbox-x and neko project 21fmgen emulators)

Touhou Project All-In-One Pack ver. 2023-11-15
https://nyaa.si/view/1743411
(includes the new games and a simplified version of the touhou98 pack above, with dosbox-x only)