Has anyone hacked together their own SAAS solution using Saasify, the open-source saas building software?

I found this project: https://saasify.sh/

And I feel comfortable being able to integrate my existing stack using this, but I wonder if anyone has ane experience in building their own Saas product over using a saas building platform service like, a completely different org for example: https://saasify.ai/pricing/

Saving on service costs is key for my open-source, grassroots, self-funded project at the moment but I also don't want to get into a situation where I'm spending too much time trying to make something rather than just "using something off the shelf".

Thanks in advance for your advice!