Graham Fleming

Mechatronics Engineer | Human Advisor
building @NeuralHub_infra | amba @vercel

[Graham Fleming @GrahamFleming]

Physical AI Hack 2026 at Founders Inc in San Francisco

Builders came together for a robot hackathon with real hardware like the LeRobot SO-100, LeKiwi, Unitree G1 and others. Teams tackled live manipulation challenges picking from puzzle and shape insertion, plugging in chargers, and pouring liquids into cups.

We explored transfer learning, fine tuning VLMs and VLAs, closed loop policies, and generalization across messy environments all with visible, measurable progress that you can't fake.

Physical AI is bridging the gap from digital models to tangible impact faster than ever, but the real magic happens when hardware meets adaptive software.

Shout out to organizers @fdotinc, Dhruv Diddi, Devinder Sodhi + more

[Graham Fleming @GrahamFleming]

Attacker sent fake Sentry bug report to an AI

AI uses suggested bad npm package

entire contents of .env sent to attacker

https://t.co/Ki8V2RGfuD

[Sergey Karayev @sergeykarayev]

"Urgent Security Notice re: Your Sentry Organization"

Someone tried to hack Sentry-using apps that use coding agents by

1. Sending a fake bug alert to their project (all you need is the app's public Data Source Name)

2. The fake bug tried tricking a coding agent trying to fix it into installing some a compromised NPM package

3. The compromised package would send the env contents of the machine to advisory-tracker[.]com/api/v1/telemetry

This highlights a crucial thing for using agents in an automated way:

[Graham Fleming @GrahamFleming]

Looking closer at the Orca Slicer settings it shows the nozzle was not the only problem.

Using a Ender 5 Pro with PETG so the temperatures had to come up and raised the infill to 25%, the other defaults seem fine for this quick print.

Will see how the ESP32 fits with this one

[Graham Fleming @GrahamFleming]

@DavidSacks also partner with a space company to put that AI in space

[Graham Fleming @GrahamFleming]

next was to flash the meshtastic code
https://t.co/9sRfNKiOck

[Graham Fleming @GrahamFleming]

Was able to use the Meshtastic web flasher

Tons of different options and form factors, the Heltec V3 with the ESP32-S3 looks like the right one

Everything happened right inside the browser was able to select the ttyS0 linux usb port and flash the board connected to my laptop

[Graham Fleming @GrahamFleming]

Heltec LoRa 32 V3

Making a prototype for the Meshtastic device, this one has a ESP32 dual core 240MHz and a small OLED display.

Only 512 KB of RAM so not doing a lot of processing but good for relaying information.

[Graham Fleming @GrahamFleming]

Was able to use the Meshtastic web flasher

Tons of different options and form factors, the Heltec V3 with the ESP32-S3 looks like the right one

Everything happened right inside the browser was able to select the ttyS0 linux usb port and flash the board connected to my laptop

[Graham Fleming @GrahamFleming]

@kiwicopple Building generates more building to be done

[Graham Fleming @GrahamFleming]

@m1mmjp If you didnt do it you would never know

[Graham Fleming @GrahamFleming]

Something is wrong with the print head nozzle, seems like there is a blockage that is causing the PLA to not come out consistently.

Breaking out the nozzle kit and wrench to start charging over to a new 0.4mm one maybe it will improve the print quality.

[Graham Fleming @GrahamFleming]

@i2cjak this form factor is great for handheld devices

[Graham Fleming @GrahamFleming]

@seeedstudio When there's no signal

create your own

[Graham Fleming @GrahamFleming]

When you are in remote areas signal drops off fast.

Open source Meshtastic devices create their own mesh network relaying messages and information throughout the system.

Channels can be public connecting with others in the area, or private with pre shared keys.

[Seeed Studio @seeedstudio]

You never know how far offshore you'll end up. 🌊

That's why the Meshtastic nodes came along for our fishing trip.

📡 No cell signal needed 🎣 Too focused to take photos — that's the real review
🌅 Nodes on deck, lines in the water, mesh holding steady offshore

The best field test is the one where you forget it's a test. 👊

Come tell us your most unexpected Meshtastic deployment 👇

#SeeedStudio #theAIHardwarePartner #theIndieCommunicationSystem #Meshtastic #T1000E #L1pro

[Graham Fleming @GrahamFleming]

@rdotapps Keeping it simple with parts I already have. The next version with have more RAM for offline forwarding and other features.

[Graham Fleming @GrahamFleming]

@XFreeze Collective psycosis of misunderstanding so they try to destroy it

[Graham Fleming @GrahamFleming]

@IterIntellectus It is in our DNA to be afraid of intelligence that is not our own

[Graham Fleming @GrahamFleming]

@aphysicist Also moving into hardware more from software good times

[Graham Fleming @GrahamFleming]

@ID_AA_Carmack Some time human writing more gooder

[Graham Fleming @GrahamFleming]

voice to engineering

[adam @adamdotnew]

Opus 4.8 is a new frontier model at mechanical CAD design

[Graham Fleming @GrahamFleming]

@xai Great low pricing will have to try it out

[Graham Fleming @GrahamFleming]

@SpecialSitsNews All these founder lead companies have been pivoting things into another gear with AI