Yes it is: github repo.
Thank you for the link, I’ll look into that when I resume working on Teo on fall. I’m currently busy on another project and the next timeslot for Teo is fall.
What you’ve got already working is clearly great. I will be needing sound but I think that I could be able to adapt code from Allegro4 to your SDL dos version even in the form of a DOS-centric SDL extension that don’t follow the official SDL sound API (I only need to play 8 bits PCM afterall).