* feat: make invoice_number nullable and assign on send - Updated the invoices table to allow invoice_number to be nullable. - Modified the logic to assign invoice numbers only when the invoice status transitions to 'sent'. - Refactored related code to handle nullable invoice numbers, including UI components and API routes. - Added tests to ensure correct behavior when handling invoices with null invoice numbers. - Introduced a utility function to display invoice numbers, defaulting to '(Utkast)' for drafts. * fix: update fiscal period handling to return names of open periods in error messages * fix: enhance period creation logic to account for company-wide bookkeeping lock-through * fix: remove unnecessary customer_type field from customer insertion query * fix: scope invoice number count query to specific companies to avoid test interference * feat: Implement atomic invoice number generation and ensure compliance with invoice numbering rules - Introduced `ensureInvoiceNumber` function to assign invoice numbers atomically, handling concurrency and ensuring compliance with document types. - Updated invoice-related components to utilize the new `invoiceNumberDisplay` utility for consistent invoice number formatting. - Added checks to ensure that invoices in non-draft statuses have valid invoice numbers, preventing violations of legal requirements. - Created tests for the new invoice number generation logic, ensuring correct behavior under various scenarios, including concurrent requests. - Added a draft banner to PDF templates for invoices without assigned numbers, clarifying their status to users. - Updated database migrations to support the new atomic invoice number generation logic and enforce constraints on invoice statuses.
gnubok
Open-source Swedish accounting software for sole traders (enskild firma) and limited companies (aktiebolag).
What is gnubok?
gnubok implements double-entry bookkeeping compliant with Swedish accounting law (Bokforingslagen). It supports the BAS 2026 chart of accounts, handles VAT declarations (momsdeklaration), SIE import/export, and enforces 7-year document retention. Built for sole traders and limited companies operating in Sweden.
Features
- Double-entry bookkeeping -- BAS 2026 chart of accounts, draft/commit workflow, sequential voucher numbering
- Invoicing -- Create, send, and track invoices with mixed VAT rates and PDF generation
- Bank reconciliation -- PSD2 bank connection via Enable Banking, 4-pass automatic matching
- VAT declaration -- SKV 4700 form mapping, per-rate breakdown, EU/export handling
- Tax reports -- NE-bilaga, INK2, SRU export for Skatteverket
- Supplier invoices -- Registration, payment tracking, input VAT deduction
- Document archive -- SHA-256 integrity, 7-year retention enforcement, full archive ZIP export
- SIE import/export -- Standard Swedish accounting interchange format
- Extension system -- Opt-in plugins for AI categorization, receipt OCR, email, calendar, and more
Self-Hosting
git clone https://github.com/erp-mafia/gnubok.git
cd gnubok
./setup.sh # Prompts for Supabase credentials, generates .env
docker compose up -d
You need a Supabase project and must apply the database migrations before first use. See SELF-HOSTING.md for the full step-by-step guide, including Supabase setup, auth configuration, optional features (AI, email, push notifications), and troubleshooting.
Development Setup
Prerequisites: Node.js 20+, a Supabase project.
npm install
npm run dev # Start dev server (auto-generates extension registry)
npm test # Run tests
npm run build # Production build
npm run lint # ESLint
Tech Stack
- Framework: Next.js 16 (App Router), React 19, TypeScript (strict)
- Database: Supabase (PostgreSQL + Row Level Security + email/password auth + TOTP MFA)
- Styling: Tailwind CSS 4 + shadcn/ui
- Integrations: Enable Banking (PSD2), Anthropic SDK, LangChain, OpenAI, Resend, JSZip
Documentation
- SELF-HOSTING.md -- Full self-hosting guide (Docker, Supabase setup, migrations, optional features)
- CLAUDE.md -- Architecture, bookkeeping engine, database conventions, extension system
- CONTRIBUTING.md -- Development workflow, code style, pull request process
- SECURITY.md -- Vulnerability reporting policy
Contributing
Contributions are welcome. See CONTRIBUTING.md for the full guide.
All commits require a DCO sign-off (git commit -s).
License
AGPL-3.0-or-later with an extension exception: third-party extensions that interact solely through the documented Extension API may be licensed under any terms, including proprietary. See LICENSE for details and NOTICE for third-party attributions.