klokantech/tileserver-gl to maptiler/tileserver-gl on Synology DS

[nexttoyou]

Unfortunately, I'm unable to migrate from klokantech/tileserver-gl to maptiler/tileserver-gl as Docker on a Synology uses a GUI giving a much different approach than most situations described here. Just copying the config doesn't work as the software won't start with the following error:

The specified path for "styles" does not exist (/usr/src/app/node_modules/tileserver-gl-styles/styles).

If somebody here uses a DS and could help me out it would be deeply appreciated.