Harsh truth:

My side SaaS project made more money in its first month (built late winter last year, MVP released after ~3 weeks of development) than the sTaRtUp I work for over its total lifetime so far (built over 3+ months, MVP released in May last year)

...is it time to rage quit?

Often I have dreams of going full-time solo dev, leaving every idiotic, clueless, fumbling clown behind, but I feel like I just don't have the financial runway to do it. However, even from just a few months in 2021 while I was on the job hunt, I created some side revenue streams which I'm still receiving decent revenues from (selling courses, saas products, minor freelancing). I'm just not 100% sure if I was "lucky" during this time period, or if a few more months going at it I'd be able to scrape my way towards a meager (though livable!) income.

Give me biased views, devRant!

just go for it! //biased starter upper

if i were u, i'd already have gone for it and worked some more on that SaaS thingy, to make it even more profitable. even that first part, a side project making any money, sounds like a dream to me, let alone it making more money than some wannabe company

@Midnight-shcode This!

their glimmer of hope is your reality already. I say go for it, invest more time with it to see what happens. If you can continue with your current employment to at least secure that revenue stream whilst working on your side SaaS project then why not? just don't get burned out.

Best of luck my G

No kids? Do it!

TL;DR quit.
Long version:
The first stage is to grab your last paycheck. Only then you say the magic word. Then it gets tricky since "you only burn a bridge if your enemy is currently standing on it".
If you do want to burn a bridge (i.e. they really need you), don't even bother hearing their counter-offer or attending their exit interview (I can respect that. But be a gentlemen, tell them you won't be coming). And beware, depending of your contract, you might be required to attend an exit interview and even work for a grace period to receive your severance package. Most sTaRtUp scams don't even offer one, if that is the case make them remember why it is so dumb to offer no severance package in tech.
If you do not want to burn a bridge, prepare for the emotional blitzkrieg. They will try to make you feel like a traitor and to make you believe their bullshit is justified. Classic abusive husband shit. Then they will say they will change and need you. Balooney.
Be strong and leave ASAP.