Founder Field Notes
First-hand lessons from operating startups, consulting, shipping products and learning in public.
Ordered from the newest field note to the earliest.
Field NotesFrom Ops Manager to Solo SaaS Founder: A 10-Year Detour That Wasn't
From ops manager to solo SaaS founder: how 10 years of startup operations at Paytm, UrbanPiper and Aviyel became the exact skill set for building with AI.
Field NotesThe Solo Founder AI Stack (2026): What I Actually Use to Ship
The solo founder AI stack I use in 2026 to ship production SaaS: Next.js, Supabase, Clerk, Vercel, AI coding agents, local LLMs, and honest costs.
Field NotesBuilding Vertical SaaS: Hard Lessons from Hotel Management Software
Vertical SaaS lessons from building hotel management software solo: why domain depth beats features, Postgres RLS multi-tenancy, and the India angle.
Field NotesGiving AI Agents Long-Term Memory: What Actually Works
AI agent long-term memory that actually works: file-based memory vs vector stores, and the hot-index, archive and session-injection system I built.
Field NotesVibe Coding in Production: Guardrails That Keep AI-Written Code Safe
AI writes most of my production code. These guardrails keep it safe: lint rules, database triggers, and invariant tests built from real production incidents.
Field NotesFine-Tuning vs RAG vs Prompting: A Builder's Decision Guide
Fine-tuning vs RAG vs prompting explained in plain language: a decision guide for builders, and why most startups should exhaust prompting first.
Field NotesAI Agents for QA: How I Test a Production SaaS With an Agent Swarm
How I test a production SaaS with AI agents: exploratory browser testing, chaos injection, mutation testing, and turning every bug into a permanent test case.
Field NotesLocal LLM vs Cloud API: What Startups Should Actually Use in 2026
Local LLM vs cloud API for startups in 2026: an operator's decision framework covering cost, privacy under India's DPDP Act, latency and quality.
Field NotesWhat I Learned Building a Multi-Agent AI Coding System (BeckyOS)
Why one AI agent isn't enough for production software: the specialist roster, separation of duties, and evidence tiers behind BeckyOS, my multi-agent coding OS.
Field NotesRunning Local LLMs on a MacBook: The Practical Guide for Builders (2026)
Running local LLMs on a MacBook with Ollama: what model sizes fit in your RAM, quantisation in plain English, and the real workloads I run offline.
Field NotesHow I'm Building a Full SaaS Platform Solo With AI at 36
Building a SaaS solo with AI: after 10 years in startup ops, I'm shipping a hotel management platform with Claude, Supabase, and Next.js - stack and lessons.
Field NotesThe Kanban Board for Freelancers: Stop Overwhelming Yourself (2026 Edition)
Freelancers suffer from 'Open Loop Anxiety'. Here is the 5-column Kanban system to visualize your work, limit WIP, and get paid faster.
Field NotesEmbracing Life: Beyond the Illusion of Work-Life Balance (2026 Edition)
Stop chasing the myth of 'balance.' Discover why top founders in 2026 choose 'Work-Life Integration' and how to manage energy, not time.