We Vibe Code a $30K/month SaaS App in 64 Minutes (Replit)

Synopsis

Greg, Billy Howell and Nic Conley vibe-code an 'Invoice Nudger' SaaS in 64 minutes on Replit that uses Resend to send increasingly assertive but professional reminder emails to freelancers with unpaid invoices. The second half is marketing tactics for SaaS launches: cold-email 10k agency contacts bought on Upwork, LinkedIn short-form video with daily posts for 14 days, and hand-to-hand combat with creator partnerships.

Ideas in this episode

• B2B short-video ad agency

  Greg's group builds an Invoice Nudger SaaS and recommends cold-emailing 10k agency contacts plus 14 days of daily LinkedIn short-form posts.

• B2B bookkeeping / accounting SaaS

  The Invoice Nudger build suggests a vertical dunning tool for higher-value B2B accounts receivable cycles, using professional reminder emails and pairing the SaaS with cold outreach, short-form video, and creator partnerships.

• Cold email outreach agency

  Greg, Billy and Nic vibe-code an 'Invoice Nudger' SaaS in 64 minutes on Replit, then cold-email 10k agency contacts and run LinkedIn short-form video for 14 days as marketing tactics.