If it's better, by tying it in with your other products, by making it compatible with the market, and by building an ecosystem moat on top of it. You can also l

If it's better, by tying it in with your other products, by making it compatible with the market, and by building an ecosystem moat on top of it. You can also lower the price to capture marketshare. Plenty of proprietary systems won despite being late and the open source system had become incumbent. See discord/slack, MATLAB, Spotify. If Windows Server had a better DX, had supported everything Linux did, AND had proprietary features on top of that, it would've done well I reckon.