So a small update on this: I've lost the main code repository as well, it turns out. I've got backups, but it's gonna add some extra complications to the refactoring and porting work. I'm also in the process of moving to the other side of the country and in the last months of crunch before deadline at my day job, so there's plenty of distractions. I can't really make a more optimisting release date promise than "sometime in 2022, unless something goes terribly wrong". But I'll keep everyone updated!
(There's plenty of quality-of-life and asset improvements in the sequel that I want to reuse for the remake of the first game too, so it's not gonna be a lazy asset-flip port job)