Hello !
Well, I downloaded the new version (1.4) and gave it a try but i still have the same message
I spend more time to understand problem. App use nuklear.so library which compile for specific system.
Now I rebuild bundle and it works on my systems.
I use 10.12 (Sierra) and 10.15.4 (Catalina)
If you have experience with love2d you can try to build app, but you it not easy way.
https://github.com/schwarzbox/Photon
Thank you for your comments and tests.
Some tips.
1. Press "New"
2. If you need more maximum particles increase Buffer and press "Reset".
3. Use Emit to produce some particles (Emit < Buffer)
4. Set Emission Rate to automatically produce particles (Emission Rate < Buffer)
5. Maybe you like Spread. Try to set 6.28.