Can I run the app? Can I use the app? Does it do what I need it to do? Do I have a good experience? If yes, then I'm good. I don't care if it's Electron.
Founder in my 40s here. "1 toddler and another child is coming" - Then you want to work one and a half or maybe two jobs? Unless your wife is Superwoman, sounds like a divorce to me. Wait until your kids are in school and more independent. In the next few years, your wife and kids need you. There are plenty of successful founders in their 40s. In fact the average age of the successful founder is 44. Plenty of time! Focus on your wife and kids or you will regret it.