Blog
Writing.
Technical deep-dives into the work I do.
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RAG, Fine-Tuning, or Prompt Engineering: Which AI Approach Fits Your Startup
Choosing between RAG, fine-tuning, and prompt engineering for your startup's AI features? A practical breakdown of cost, complexity, and when each approach makes sense.
7 Signs Your Startup Needs a Fractional CTO
Not sure if your startup needs a CTO? Here are 7 clear signs it's time to bring in fractional technical leadership — and what happens if you wait too long.
What Does a Fractional CTO Actually Do? (Week by Week)
A fractional CTO isn't a consultant who drops a slide deck and disappears. Here's what the role actually looks like week to week — from architecture decisions to team mentorship.
How I Built a Fully Autonomous AI Podcast
Luke at the Roost produces full episodes with zero manual intervention — from LLM script generation to multi-platform publishing. Here's how.
Fractional CTO vs Full-Time CTO: When Each Makes Sense
The decision between fractional and full-time technical leadership depends on your stage, budget, and what you actually need built. Here's a framework.
How I Replaced $50K in SaaS with Open Source for a Hotel Group
A practical breakdown of every SaaS tool we replaced, what we replaced it with, and how much we saved at JET Hospitality.
How Much Does a Fractional CTO Cost in 2026?
Fractional CTO pricing ranges from $5K to $15K/month depending on hours and scope. Here's what drives the cost and how to budget for it.
How to Build AI Infrastructure Without a $500K Team
You don't need a team of ML engineers to deploy AI. Here's how funded startups can build practical AI infrastructure with a fractional CTO and the right architecture.
Running 29+ Services on a Single NAS with Zero Monthly Fees
My self-hosted stack runs Mastodon, Gitea, Castopod, Postiz, and more — all on a QNAP NAS with Cloudflare Tunnels. Here's the setup.
DevOps for Growing Startups: What to Build vs Buy
A practical guide to DevOps decisions for startups with 20-200 people. What to invest in, what to skip, and when to bring in help.
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