I'd suggest you might have more luck with a desktop app. Could wrap your existing web app with Electron or Sciter to avoid needing to rewrite the GUI. Businesse

I'd suggest you might have more luck with a desktop app. Could wrap your existing web app with Electron or Sciter to avoid needing to rewrite the GUI. Businesses need to know they can rely on the software they use, and that's an easier sell when they can run it on their own hardware. I'd suggest a better business model is a relatively low cost for the software but charge for an optional support subscription.