Not a sales list. The five things founders keep telling other founders to sort out in the first month after launch, in roughly the order they matter.
Move off the preview URL. Point a real domain at the app. Set up SPF, DKIM, and DMARC on the sending domain before you email a single customer. Half the horror stories in the launch threads start with a founder wondering why nobody replied to the welcome email.
Switch to live keys. Turn on tax handling and receipts. Make sure the first invoice looks like it came from a real company, with a proper name, address, and VAT or sales tax number if you need one. Refunds and disputes should have a plan before the first dollar clears.
Every prospect, trial, and paying customer needs to exist outside your Gmail search bar. A basic CRM, even a shared Airtable, beats memory. You will forget the founder you promised to send pricing to. You will not forget it if the row exists. If you are still choosing, the honest tradeoffs are covered in the best CRM for early stage startups, and the rest of the stack sits in what tech stack early stage founders actually use.
Send a signable order form and a clean invoice from Base. It logs everything against the deal so you stop stitching PDFs together in Gmail.
MRR, cash in, cash out, top customers, at risk deals. Base pulls it from Stripe, your CRM, and your finance tool so you stop guessing.
Lovable built the product. Base runs everything the product needs around it: customers, contracts, cash, and follow ups.
Launching on Lovable was the easy week. The next month was the mess. Base was the thing that turned the mess into a business.