The FDE Coach blog · new articles every day
Practical guides for engineers who ship AI.
Step-by-step builds with free AI tools, what just shipped in AI and why it matters, and Forward Deployed Engineer playbooks on interviews, pay and client work.
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AI News
How GPT-5.6 Sol Ultra Cracked a 50-Year-Old Math Conjecture
OpenAI's reasoning model produced a novel proof of the Cycle Double Cover Conjecture. Here's what happened, why it changes the game for engineers, and how to use it today.
11 min read
Build Guides
Build a Free Lead Enrichment Agent from Domains (OpenRouter + Playwright)
Build a hands-on lead enrichment agent that scrapes company websites from a CSV of domains, then enriches each with AI summaries and ICP scoring—all using free-tier tools.
9 min read
Build Guides
Build an AI Cron: Turn RSS Feeds Into a Personalized Morning Newsletter
Use Ollama, n8n, and Hugging Face’s free tier to build a scheduled AI pipeline that fetches RSS feeds, summarizes articles locally, and emails you a custom digest every morning.
8 min read
Build Guides
Build a GitHub Issue Triager With Free LLMs: Auto-Label, Route Bugs
Ship a GitHub App that classifies issues, applies labels, and routes bugs using Groq’s free LLM tier and Cloudflare Workers AI. Full step-by-step with code, no paid tools required.
9 min read
Build Guides
Build a Free Competitor Monitoring Agent with Playwright and Groq
Build an autonomous agent that scrapes competitor websites, diffs changes, and summarizes updates using Playwright and Groq's free Llama tier. Complete with Supabase storage.
9 min read
Build Guides
Build a Gmail AI Agent to Triage Inbox & Draft Replies with Free LLMs
Ship a free Gmail AI agent that labels, prioritizes, and drafts one-click-send replies using the Gmail API and Google Gemini free tier—hosted on Vercel. No credit card needed.
10 min read
AI News
AI Slop Starts in the Codebase: How LLMs Rewrite the Rewrite Calculus
LLMs don't just generate code—they fundamentally change the economics of software rewrites. Here's what that means for your legacy systems, your team's velocity, and the very definition of technical debt.
10 min read
AI News
Git for Bots: Architecting Version Control for the Autonomous Agent Era
Autonomous coding agents are about to shatter traditional Git workflows. Here's why commit-and-branch falls apart when bots write 10,000 lines an hour—and how engineers are rebuilding version control for the agent boom.
13 min read
AI News
Can Coding Agents Handle a Million-Line Codebase? Databricks Put Them to the Test
Databricks benchmarked coding agents on their real, multi-million-line monorepo. The results reveal where agents shine, where they fail, and what it means for engineers shipping production code.
10 min read
AI News
Prompt Injection in the Wild: How GitHub Copilot Leaked Private Repos
Noma Security tricked GitHub's AI agent into leaking private repository contents via prompt injection. Here's the technical breakdown, why it matters for engineers, and how to defend your repos today.
9 min read
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