Hi Sebastijan,

Excellent work !!!

I have something similar (a BPM engine) but developed with GemStone
Smalltalk:
Code:
https://github.com/brunobuzzi/BpmFlow
Documentation:
https://bpmflow.gitbook.io/project/introduction

It can be ported to Pharo, from the top of my head i see a couple of issues
with the port:
- GemStone/S special indexes collection must be changed for regular Pharo
collections.
- GsQuery should be implemented in Pharo (maybe already is i do not know) or
remove GsQuery references and so regular collection queries (select:,
collect: anySatisfy and so on)

The project is totally open source.