Good morning Henk Kruse,
1. I am not aware of a Joomla or PHP based solution for wine management. May I ask why you would like it within Joomla or why a PHP solution?
2.a Yes, I could send you the necessary file to thanslate the software screens. Currently about 2,500 text strings to translate.
2.b Never done this, but technically possible as you probably have seen a lot is translated into French and German. For this to happen I would send you a database which has "Dutch" defined as a supported language, you would then have to go through the master data dialogs and translate the data. To be able to share this data with future users of the system you would have to send the databse back to me and I would have to create some tool to extract it and include it into the next minor release (e.g. 3.2).
3. The path to the program nor the data folder are hard coded (there was an issue with the "config" folder which should be corrected in the latest release), they could be on "D:" or wherever, but the drive has to be a locally attached drive. This is a "limitation" of the database engine I use. They did this as there currently is no save way to detect if a file is open on a NAS or non local drive, as concurrent access to the database by two different db engines is just about ensuring corruption of the database they are preventing this.
FYI, in my own setup I use the full server version of the database whch allows access to the database server from any PC on my LAN. This is still experimental but at some point I like to make this available to other users too.