
CISO at @VillanovaU. Former Falcon, Owl, Prof. All tweets are my own and typically focus on technology, usability, accessibility, security and privacy. 🇺🇸
Philadelphia
Joined March 2007
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Leo Nelson retweeted
As college sports experiences an upheaval, Notre Dame and Villanova found a way to illustrate their programs’ unique identities at the Vatican si.com/college-basketball/vi…
Beautiful work and reference designs
For 15+ years I’ve collected the interfaces that made me stop and ask “wait, how does this work?” Interface Lineage is now open interfacelineage.com
Learn the patterns and principles that turn “make no mistakes” into clear instructions for AI. 500+ interfaces, free to read.
Leo Nelson retweeted
As more and more designers move into Design Engineering, here are some commonly used overlay terms that help you describe your UI to Claude or Codex more precisely. Save this for later.
Leo Nelson retweeted
BlueChip. Built in America.
America made the first electronic computer to win a war.
Now we depend on our greatest adversaries to build the computers that run our economy and defend our nation.
Today, we bring it home.
Leo Nelson retweeted
I had the domain for quite some time and the website was already up - but finally it's where I wanted it to be.
◽️Full XDR and Sentinel schema coverage
◽️Documentation of XDRInternal modules by @NathanMcNulty and me
◽️Table column relations (partly)
xdrinternals.com/
Leo Nelson retweeted
If you struggle to describe scroll animations in Claude or Codex, these commonly used terms can help. Save this for later.
Leo Nelson retweeted
THE VIBE MANUFACTURING PLAYBOOK
1. Measure everything. Digital calipers for small parts, a phone LiDAR app like Polycam to scan a space or an object. Bad measurements are the #1 reason first builds fail
2. Have a frontier model write the design as code. Describe the part to a model like Claude Opus 5.5 or Astra, and have it write the design in a codebased CAD tool like OpenSCAD or CadQuery. Zoo's Text to CAD does it in one step!
3. Use real CAD files. The text to 3D models on Hugging Face make shapes that look right, but factories need precise files: STEP for machined parts, DXF for lasercut metal, STL for 3D printing
4. Make sure it can be made. Ask the AI to check the design against how factories actually work: how tight metal can bend, how small a hole can be, how much wiggle room parts need etc...
5. Prototype in plastic first. A $300 to $600 home 3D printer like a Bambu Lab lets you test the fit overnight before paying for metal (really fun to play with too!)
6. Pay an engineer for 1 hour. Before your first real order, have a mechanical engineer on Upwork etc review the files. It's the cheapest insurance you'll ever buy.
7. Send it out. SendCutSend cuts and bends metal, Xometry and Protolabs handle machining and plastic, JLCPCB builds circuit boards. Instant quotes, and parts usually ship in days.
8. Add the brains. Most smart features run on a cheap wifi chip like the ESP32. Design the board in KiCad, and use ESPHome to control it straight from your phone.
9. Make one, then fix it. Your first version will be off somewhere! Order a single unit, test it, and adjust.
10. Do the math. Add up parts, finishing, assembly, packaging, and shipping. Custom products are hard to resell, so price for healthy margins.
11. Sell the design and make to order. Let customers adjust the measurements, and only manufacture after they pay. Zero warehouse, zero unsold stock.
12. Handle the boring part. If it plugs into a wall or touches kids, you'll need safety certification. It's slow and annoying, which is exactly why it's a moat.
13. Scale when it works. Once orders are steady, switch to batch runs and your cost per unit drops fast.
Vibe coding changed who can build software!
Vibe manufacturing is about to change who can build things!!
Even if you just want to make things for yourself (and not make things for others)
WELCOME TO THE VIBE MANUFACTURING ERA
We are now entering into an era where any product can be created exactly to a consumer's preferences & needs.
I vibe-fabricated a dog door with a wifi-controlled lock, perfectly to the specifications & design of my house.
I know nothing about metal fabrication or electrical engineering.
It's now getting manufactured and delivered in 2 weeks -- for almost the same cost if I bought a mass-produced item off-the-shelf.
Love that @bscholl and @boomsupersonic are listening to feedback and completely reimagining air travel.
Adam’s post summarizes what many of us see and experience today.
Leo Nelson retweeted
#MDDR 2026 is out – a must-read for everyone in #MicrosoftSecurity. Password spray still leads by volume, but post-authentication attacks keep gaining ground: token theft shows up as a distinct post-compromise tactic. Check out the full report:
aka.ms/MDDR2026
Leo Nelson retweeted
Today, Cloudflare have announced the intention to acquire a root cert and become our own CA 🎉 blog.cloudflare.com/cloudfla…
Leo Nelson retweeted
The slides from my talk at Microsoft Bluehat Singapore are public here:
thomasdullien.github.io/abou…
It's my first BlueHat talk since the Vista days.
Leo Nelson retweeted
Cloudflare ha lanzado su propia skill completísima de auditorías de seguridad.
Es la que utilizaban internamente en la empresa como sistema de detección de vulnerabilidades.
→ github.com/cloudflare/securi…
Leo Nelson retweeted
Too many AI personal assistants, too little time to assess all of them. Nice work here: assistantbenchmark.com
Leo Nelson retweeted
25 years later, we remember. Today, we honor members of our community who lost their lives on Sept. 11, 2001, and all those impacted by that tragic day. Their legacies live on at Villanova through a meaningful memorial and enduring support for students.
villanova.edu/university/med…
Leo Nelson retweeted
👋 Folks after year long hiatus the community powered database of aka•ms is back!!
Bookmark it 👇
akams.fyi
I made some updates to the site, including a much simpler experience to contribute aka•ms links to the database.
Very excited to share that Copilot Notebooks now supports Markdown (.md), plain text (.txt), and rich text (.rtf) files!
Your team’s most critical project knowledge rarely lives in a single polished document. It also lives in READMEs, messy meeting transcripts, architecture wikis, system logs, and raw customer feedback.
Ways you can use this:
🚨 Incident response: Drop your raw logs and a README side-by-side to quickly find where things went off track.
📝 Meeting follow-ups: Feed in an unedited transcript export and pull out the real action items and owners.
💡 Customer insights: Dump raw support ticket exports in to find recurring themes without having to clean the data first.
🚀 Project onboarding: Throw in your release notes, wikis, and runbooks to build a quick, grounded Q&A workspace.
techcommunity.microsoft.com/…





























