upload the files to a directory,
put dump.rdb in /etc ..
make sure the file has right perms, or it will get nulled when you restart redis.
restart redis check dump.rdb hasn't changed. start nodebb
I would think it would work unless npm install compiles differently during the setup phase on another OS
You could also just make a new location block that points to to .well-known location on your disk.
I have my main forums (https://gamingexodus.com) under /var/www/nodebb/forums, and then have the https://gamingexodus.com/.well-known/stuff under /var/www/.well-known