Use case·Finance & Accounting
Finance & accounting apps with real persistence and audit
AP, AR, check writing, expense entry, invoicing. The work that lives in Excel + a 2007 desktop app + a paper file. The factory ships verified Next.js + libSQL web apps today (real persistence, full CRUD per entity, functional POST + GET smoke). The desktop apps listed below — including a MICR check writer — are roadmap (see ADR 0008).
The pain
- ✕Checkbooks live on one bookkeeper's desktop
- ✕Excel macros that break every Windows update
- ✕No audit trail when someone edits a posted invoice
- ✕Web SaaS can't print MICR checks
The apps
Check Writer Pro
Windows desktopMICR-line check printer with vendor book, approver roles, and stub history. Reference app in scaffolding; not yet a production-verified build.
Be the first design partner →Invoice Studio
Desktop + webGenerate, send, and reconcile invoices. Email + PDF + portal upload.
Join design partner program →Expense Reconciler
Windows desktopPull bank CSV, match against AP records, flag exceptions.
Be the first design partner →Sample prompts (copy-paste these)
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Build a check writer that prints MICR checks, requires two approvers for amounts over $10,000, and exports a daily summary to Excel.
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Build an invoice generator that pulls customer data from QuickBooks, generates PDFs, and emails them with payment links.
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Build a 1099-MISC preparation tool that aggregates vendor payments from my chart of accounts and produces IRS-formatted output.
Ready to build in finance & accounting?
Pick a sample prompt above or write your own. Hobby tier is free today; Pro / Team / Enterprise are planned.