I rebuilt my SaaS marketing stack in 10 days as a solo founder

I'm building Underpriced AI — an app that tells resellers what their stuff is worth. Snap a photo, get a price from real sold data across eBay, Poshmark, Mercari, and more.

Last 10 days were a blur. Here's the rundown.

The big move: fully automated blog pipeline

I had 51 hand-managed MDX blog files. Painful to maintain, painful to publish.

So I nuked them all and moved everything into the database. Now the entire pipeline is automated:

Discover topic → Generate brief → Claude writes full article → Auto-publish

All triggered from the admin panel. I went from "writing a blog post takes 2 hours" to "click a button, get a published post." Shipped 30 SEO
blog posts and 10 category landing pages in a single push.

The trick was using Claude Sonnet to write from structured briefs (topic, outline, key points, target keywords) rather than open-ended
prompts. Way better output.

Rebuilt the SEO dashboard from scratch

Old version was basically a keyword list. New version:

• Keyword rank tracking
• DB-backed competitor analysis with gap detection
• Content brief generation that feeds into the blog pipeline
• GA4 + Search Console data pulled into one view
• Step-by-step workflow so I actually know what to do next

It's the "marketing command center" I always wanted but never had time to build. Now I do my entire SEO workflow from one admin page.

Mobile app polish

Underpriced runs as a native app via Capacitor. Spent a solid chunk of time on mobile UX:

• Pinch-to-zoom and double-tap on the image lightbox
• Fixed every modal, toast, and dialog for small screens
• Sticky action bar on scan results (Save + List to eBay/Poshmark/etc.)
• Safe area handling so nothing hides behind the notch

Not glamorous work, but this is the stuff that makes people actually keep using your app.

Other wins

• Authority building pipeline — admin tool for finding outreach targets and generating outreach emails
• Thumbs up/down feedback on scan results (need this data to improve accuracy)
• Referral tracking with anti-gaming protections
• Removed multi-tenant features — was building org/team stuff nobody asked for. Killed it. Staying focused on solo resellers.

Lessons from this sprint

1. Automate your content pipeline early. I should have done the blog-to-DB migration months ago. The ROI on that single change is enormous.
2. Mobile polish compounds. No single fix was a big deal. But 15 small fixes together made the app feel completely different.
3. Delete features that don't serve your core user. Ripping out the organization/multi-tenant code felt scary but the codebase is cleaner and
   my focus is sharper.
4. Ship fast, but ship every day. 72 commits across 6 days. Some days were 17-18 commits. The momentum is addicting and it keeps you from
   overthinking.

What's next

Accuracy is everything for a pricing tool. Next sprint is focused on improving scan quality and getting more user feedback loops in place.

If you flip stuff on eBay, Poshmark, or Mercari — I'd love for you to try it out and tell me what you think. Always looking for honest
feedback from resellers.