Hey everyone! I have just released the first version of calgen, a simple, configurable wall calendar generator written in pure freepascal! No lazarus libraries, just what comes with freepascal.
It is a command line utility. You specify all the options as parameters. Then it outputs a bunch of JPEG's that you can then process or turn into a pdf.
You can download it here
https://github.com/el3ctr0lyte/calgen