C-TPO

Homebase

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This site is home. Everything starts here: the longer pieces, the notes, the media. Pick whichever door suits you. You don't need all of them, and none of them need anything from you but a follow.

Apps come and go. If one of these disappears, this address won't.

Bluesky @ctpo.io Short notes, and where I reply. The handle is this domain, so you know it's me. LinkedIn Matt Depue Each longer piece gets a post, and that's where most of the discussion happens. YouTube @ctpo-io The short videos that go with the writing, including the kids' versions. RSS, longer pieces /rss.xml Every new piece, in any feed reader. No account anywhere. RSS, notes /notes/rss.xml Just the short notes.

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Just the longer pieces and take-homes, when they're ready. Reply to any of them and it comes straight to me.

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Coming later

Following this site straight from Mastodon or Threads, as if the site were an account. And whatever comes after apps: your bot talking to mine, maybe. If that happens, it'll start from this address too.

For people short on time

TL;DR

Matt thinks out loud here about technology, mostly how teams decide what to build, fix and protect.

The first series argues that security gets better fastest when the teams that each hold part of the answer share it earlier. Part 2 says most critical findings aren't: seven questions tell you which, and the answers live with other teams. Clay first, chisel later is about roughing out the whole thing before polishing the parts.

Every piece says how much AI helped, and the site changes in the open. The discussion happens on LinkedIn.

Start with Part 1 β†’
AI score 2/4 me. Idea 1.5/2 Β· Words 0.5/2. AI drafted these from what's on the site; I haven't rewritten them yet

Updated October 14, 2026. A TL;DR for the whole site, by reader, is an idea by Matt at ctpo.io. Copy it freely, just link back.