maciejszulia
Maciej Szulia
Web applications · API integrations · command-line tools
Website & booking API · Reception system · CLI & source
AgroCamping website and booking API
A Polish, English and German website with a separate booking API and reception integration.
- Shared booking rules, transactional capacity checks and idempotency handle repeated requests.
- A persistent outbox tracks notification attempts separately from booking acceptance.
- Payment callbacks are verified; optional consent and guest-data retention have explicit boundaries.
Next.js · React · TypeScript · Node.js · MySQL/MariaDB · Stripe · GitLab CI
Technical overview · Public website
AgroCamping Reception
An internal application connecting reservations and guest enquiries with reception work and financial records.
- Repeated imports preserve pitch and price changes made by reception staff, plus cancellation and checkout states.
- Receipts, refunds and reversals are reconciled as financial evidence, separately from booking status.
- Backend permissions, enquiry-deletion propagation and release recovery address operational failure cases.
TypeScript · Astro · Express · Prisma · SQLite · Python · shell tooling · GitLab CI
Metadata catalogue CLI
A public Node.js tool that builds a local music catalogue and MPV playlist from indexed listings.
The catalogue records provenance and duplicate decisions. A writer lock and staged publication support recovery from interrupted writes. There are no npm dependencies; installation and offline tests are documented in the repository.
Evidence and scope
The verification record includes 75 passing offline CLI tests at the audited snapshot, selected API checks and synthetic reception startup. Each result identifies its source revision and scope.
Business-application source is private; public descriptions exclude guest records and production configuration. The CLI source is public. AI tools, including Claude Code and Codex, assist implementation and verification of the AgroCamping projects.
Guest data, recovery and licensing documents the limits of access, retention, deletion and reuse. Test results do not certify production health, complete coverage or legal compliance.