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belovedjohndev/README.md

John Paul Libagh

Backend developer learning by building production-style systems in public.

Current Focus

  • PostgreSQL (transactions, constraints, indexing)
  • TypeScript backend development
  • Clean architecture patterns
  • Multi-tenant design
  • Idempotent APIs
  • Deterministic system behavior

Active Projects

Ledger System

Transactional income/expense tracking system focused on:

  • Schema-first design
  • Integrity guarantees
  • Reporting logic

SaaS Backend Skeleton (WIP)

Exploring:

  • Tenant isolation
  • Explicit domain modeling
  • DB-enforced correctness

Principles

  • Learn by building
  • Understand every layer
  • DB constraints over assumptions
  • Explicit > implicit

Building slowly. Building correctly.

Popular repositories Loading

  1. belovedjohndev.github.io belovedjohndev.github.io Public

    Astro consultant site for Beloved John Dev, focused on custom business systems, client portals, automation, and lead-generation tools.

    Astro

  2. belovedjohndev belovedjohndev Public

    Full-stack developer & automation specialist building custom, code-based digital systems and business solutions.

  3. ghost-sniffer ghost-sniffer Public

    Wireless security auditing tool for authorized network testing, featuring passive discovery, vulnerability analysis, exploit simulation, and detailed reporting.

    Python

  4. personal-monthly-finance-ledger personal-monthly-finance-ledger Public

    PLpgSQL

  5. multi-tenant-estimate-engine multi-tenant-estimate-engine Public

    Multi-tenant estimate and lead capture engine built with TypeScript, PostgreSQL, and a reusable widget/demo flow.

    TypeScript