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FlacSy/README.md

Hi, I'm Andrew 👋

Backend Engineer focused on Python-based backend systems and SaaS architectures.
I mostly work on projects where architecture, correctness, and long-term maintainability matter.

Tech Stack

Core

  • Python (async, FastAPI)
  • PostgreSQL
  • Redis
  • Docker

Additional

  • Rust (performance-critical parts)
  • Event-driven systems
  • REST APIs, background workers
  • Multi-tenant architectures

Selected Projects

🚀 SaaS Skeleton

https://github.com/FlacSy/SaaS-Skeleton

https://saas-skeleton.flacsy.dev/ - demo

Production-ready backend template for SaaS products.

  • authentication (JWT + refresh)
  • multi-tenant isolation
  • billing-ready architecture
  • admin CRUD
  • metrics, health checks, structured logging

🌟 Lynx Logger

https://github.com/FlacSy/lynx-logger

Structured logging library for async and distributed Python applications.

  • context propagation
  • multi-tenant awareness
  • API & background workers support

🛡 BadWords

https://github.com/FlacSy/BadWords

https://badwords.flacsy.dev/ - docs

Profanity filter with evasion detection.

  • homoglyph handling
  • fuzzy matching
  • unicode-aware

📄 DocumentPlaceholder

https://github.com/FlacSy/DocumentPlaceholder

https://documentplaceholder.flacsy.dev/ - demo

Tool for filling Word templates using YAML configs.

  • custom expression language (parser + AST)
  • PDF export
  • GUI with syntax highlighting

📐 Architecture Case Studies

https://github.com/FlacSy/case-studies

Notes and experiments around real-world backend architecture.

  • multi-tenant identity models
  • transactional outbox
  • websocket delivery reliability
  • secure file processing pipelines

Contacts

Telegram: https://t.me/FlacSSy
Email: flacsy.x@gmail.com

Pinned Loading

  1. BadWords BadWords Public

    High-performance profanity filter

    Python 12 3

  2. lynx-logger lynx-logger Public

    The all-in-one structured logging solution for modern Python applications

    Python 1

  3. case-studies case-studies Public

    Examples of commercial architecture decisions

    1

  4. SaaS-Skeleton SaaS-Skeleton Public

    Python 1

  5. DocumentPlaceholder DocumentPlaceholder Public

    Automatically fill Word templates using YAML configs, expressions, and SQL.

    Python 1