John Mann

Tech Leader: CTO @ Obsess 20+ years building/scaling web/mobile products and teams @ Microsoft, Huge, Consumer Edge Expert in cloud architecture (GCP/AWS) Full-stack dev (React/Python) Improved performance 70%+, cut costs 40%+, Team retention 90%+ Army vet, BS CSCI #Resume #Tech

A newsletter insight this week - how I did it, what I need from you, and how I'm going to write moving forward: open.substack.com/pub/startupsan…

Special Edition: What can I use AI for? open.substack.com/pub/startupsan…

Elon tried to buy cursor... but why does that matter to you? A Code Editor. Sixty Billion Dollars. A Rocket Company. open.substack.com/pub/startupsan…

Good morning. That is all.

Ever have this mornings when you want to fix things and you know you can... DNS, CName, redirects, SSL - all because I want to fix my newsletter for you. :-) newsletter.startupsandcode.com It's a weekly newsletter about AI and Startups Its free! (although I do offer a subscription)

Just published: Vibe Coding has a hangover... and it is security and devops. open.substack.com/pub/startupsan…

Go Knicks! @nyknicks

My Easter present for me. Thanks @theory11 for the hours of fun. Soon to be weeks... Elmsley count practice going well.

Happy Easter! He has risen! ✝️

AI Can’t Fix a Bad Communicator open.substack.com/pub/startupsan…

Just attended @chambermagic No words can explain the confusion I left with. I've been to so many shows, but this was unique, special, and a great way to celebrate our anniversary. Tonight I'll dream of being a magician and practice tomorrow. Thanks Mr. Cohen!

Stop figuring out the best model, just pick one and run with it. You can always change if it doesn't work, but nothing works if you don't pick anything. "The worst decision is no decision at all" - someone famous I don't remember. :-) open.substack.com/pub/startupsan…

Just published open.substack.com/pub/startupsan…

Created a new infrastructure and consolidated multiple apps and databases in a single day. Thanks Claude! @claudeai open.substack.com/pub/startupsan…

Just published: startupsandcode.substack.com/p/the-real-ai-…

Being faster does not mean you are being better... Build with intention with AI. A different kind of post this week, would love to hear your thoughts. open.substack.com/pub/startupsan…

Agents Are Here. Are You Ready to Trust Them? open.substack.com/pub/startupsan…

For anyone paying attention, I learned a new out of this world card trick, squatted, benched, and rowed, and got Luke to Platinum. Overall a good Saturday. Balance is what makes life joyful.

I’ve Been a CTO. I Still Don’t Always Know What I’m Doing. open.substack.com/pub/startupsan…

Officially Published: Build a Multi-Tool AI Agent in Python Something useful with real code... not just theory. open.substack.com/pub/startupsan…