Independent builder & mentor

I build real products and
write down what actually works.

SaaS engineering, AI development, and the unglamorous lessons from shipping software solo in Europe — documented in public, as it happens.

M
Mervin
Dublin, Ireland
building
in public
since 2024
// now
Building  idea2viral — AI short-form video pipeline Writing  engineering notes on AI agent development Shipping  SaaS products from Dublin, Ireland
01 — Projects

Things I’ve actually shipped

● Live

Content generation SaaS. One topic → blog post, LinkedIn draft, Twitter thread, email sequence, video script — in one pass. Built around a multi-format prompt pipeline with per-site AI key routing and automatic fallback across 14 OpenAI accounts + Anthropic + Groq.

PHP · Node.js · Groq Live
● Live

Automated short-form video pipeline. Topic → AI script → TTS voice → rendered 9:16 video → YouTube upload. FFmpeg compositing driven by a BullMQ queue. Handles concurrent jobs per workspace with isolated OAuth tokens.

Node.js · FFmpeg · BullMQ Live
● Live

Affiliate link management SaaS. Cloaking, click tracking, geo-redirect, split-testing, and a dashboard that pulls real conversion data. Dead simple tool that does one job without adding a CRM nobody asked for.

Node.js · PostgreSQL Live
◆ Open source

Discussion tracker across Reddit, HN, forums, and RSS. Crawls sources, groups threads into semantic clusters using TF-IDF hashing — no embedding API. Groq for summaries. Ships as open source.

Node.js · PostgreSQL · Redis ★ GitHub
02 — Writing

Notes from the build

03 — Open Source

Free tools, repos & experiments

04 — Writing & Notes

Real AI development, documented as it happens.

No hype, no funnels. Engineering notes and systems for developers who want to ship with Claude — not just watch demos.

Read the notes
Engineering
AI Agent Patterns
Production-ready techniques
SaaS
Build in Public
From idea to shipped product
Infrastructure
Multi-model Routing
Cut LLM costs in production