So, no Windows 10 or above, NO systm

Are you using a power meter or smart trainer as power source or virtual power via your speed sensor?

If you are connecting a power source you don’t need to connect a speed sensor because SYSTM can use your power to calculate your speed.

Understanding Virtual Speed in the SYSTM app – Wahoo Fitness Support

Hi, I was looking for something similar and I thought of a mini-PC like the one in the link

I believe there is no problem for Systm but, what about RGT? Any experience anyone?

I run RGT on a NUC mini PC. No issues at all.

Glad to hear! Thanks!
Can you share your NUC specs? I believe NUC minipcs are top notch so I am concern your specs would be rather high.