Comment by dodolaunch

The Renode wrapper story is a useful one, because the build-versus-wrap decision is where a lot of infrastructure startups get stuck. Wrapping gets you to a demo quickly, but you inherit the upstream roadmap and the bug surface without control over either. For safety-critical customers I'd guess the harder problem than speed is fidelity: how do you show a skeptical avionics team that your simulated peripheral timing matches real silicon? Published correlation data against hardware traces for a few common MCUs might do more for trust than any feature list.