[tw5] Copying TW customization and configuration

I am running TW 5.2.2. on nodejs and created a new (docker) TW nodes service running 5.3.3. I copied the tiddlers from the original env. to the new one without issues but I would like to also copy all the customizations I did in the 5.2.2 to the new one. I searched this group and the web unsuccessfully. Any one could help?


Normand Duchesne