Took 6 months to build a docs SaaS. No clue if I should keep going. Help.

TL;DR : Building SaaS in a market dominated by big players. Have 0 customers. Do not know if I should quit or try harder.

I am 6 months into building a docs platform. You can think of it as Mintlify or Gitbook but for people who don't want to deal with Git, deploys etc.

It has a notion like editor, live site in 5 mins and has auto generated llms.txt for AI discoverability.

The product works but I have 0 paying customers. Just a handful of signups so far.

Here is my problem:

I have no customers that means no feedback which means I do not know if:

• The product is good and I just suck at marketing
• The product is fine but there is no market for it
• I picked the wrong domain with competitors like Mintlify and Gitbook having millions in VC funding

I am a SWE and never marketed anything except for some google ads. Doing SEO but that will take time and I do not know if I can continue till then without having a clear direction.

How do you get feedback when you have no users? I would take 10 brutal feedbacks over 10 signups.

For solo founders who have gone up against well funded companies, how to gain the trust of your users when the alternative is a big well-funded company.