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#hardwarehacking

16 posts· Last used 4d

Dennis Hilk | Nebu @dennishilk@mastodon.social
· 4d ago
I bought a used Cisco CP-9951 for about €35. Three days later, it was running DOOM natively. :D ARMv6, MontaVista Linux, /dev/fb1, the real Cisco keypad, local sound, persistent under Applications → Doom — and after installation it even works with the Ethernet cable unplugged. https://www.dennishilk.com/museum/home-computing-lab/field-notes/field-note-7/ Source/Release: https://github.com/dennishilk/cisco9951-doom #DOOM #Linux #Retrocomputing #HardwareHacking #Homelab #Cisco “Three days later, it was running DOOM natively.” bleibt einfach herrlich. :DD
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Ryan Castellucci (they/them) :nonbinary_flag: @ryanc@infosec.exchange
· 1mo ago
I want to build a 80x25 character display of out of 16 segment (plus dot) white LED modules. I found some four character modules that are 40.4x16mm, so I could do 40 80.8x80mm boards for a total of 808x400mm, and based on the 5mA per segment at 3V, about 500W max power draw, though multiplexing seems obligatory here. The problem is I would have to solder tens of thousands of connections since SMD versions of these don't seem to exist. cc @gsuberland@chaos.social #HardwareHacking #Electronics
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Praetorian @praetorian_security@infosec.exchange
· 1mo ago
Seats are filling for our DEF CON Training 2026 course. Don't sleep on this one. Bridging the GAP: Hands-On Embedded Hardware Hacking. Aug 10-11 at the Las Vegas Convention Center. With Aaron Wasserman, Garrett Freibott, and Will McCardell from our IoT pentest team. Register → https://training.defcon.org/products/bridging-the-gap-hands-on-embedded-hardware-hacking-aaron-wasserman-garrett-freibott-will-mccardell-dctlv2026 #DEFCON #OffensiveSecurity #HardwareHacking
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Magic Mystery Muesli 🐾 @dr_muesli@woof.tech
· 1mo ago
Replying to @dr_muesli@woof.tech
#MuesliTech Today I took a look at how this toaster is built. It even came with some free pieces of bread, which was a nice bonus... although they probably shouldn't have been near the mains connection and the latch mechanism. Even though I have other plans for it, I first reinforced the spring mechanism and toasted a slice of bread. Sorry, I just had to :neocat_nom_bread: #Maker #HardwareHacking #Toaster
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somananousbhidinjector @somananousbhidinjector@infosec.exchange
· 1mo ago
Meet SOMA — an ultra-small (12x13mm) ATmega32U4 USB-HID keystroke injection device designed for physical security assessments and hardware hacking. Protrudes only ~1.5mm from a USB port for a flush, covert footprint. Fully open-source schematics & firmware: https://github.com/nebojsa-sjekloca/soma First batch is now live on Tindie: https://www.tindie.com/products/42127/ #RedTeam #HardwareHacking #BadUSB #Infosec #OpenSource #Pentesting #Embedded
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ℒӱḏɩę 💾☮∞🎶♲☀🔋 @Lydie@tech.lgbt
· 2mo ago

An update on my triple 2080ti on DDR3 local solar powered AI server. It's impressive for its age and the fact that I built it for $700 plus a bunch of old crap. Combined forces of older hardware works!

I've got Hermes Agent running, the LLM is Qwen3.6-35B. Hermes has read-only access to my Google Workspace (for good reason!).

The LLM can push 550w+ across the 3x 2080ti GPUs. 33GB of VRAM allows big model and big context - Home Assistant works so nicely with a big LLM.

I want to drop in a Xeon E5-1680 v2 CPU, but that's about it for hardware.

Spec list:

  • Intel Core i7-3930K CPU
  • Gigabyte GA-X79-UD5 Motherboard
  • 64GB DDR3 RAM (8 x 8GB G.Skill Ripjaws X F3-1600C9D-16GXM)
  • 3 x NVIDIA GeForce RTX 2080 Ti Blower Edition GPUs (33GB Total VRAM)
  • Corsair RM1000e 1000W Power Supply (Refurbished)
  • 240GB SATA SSD (OS Boot Drive)
  • 3 x 1TB SATA SSDs (AI Storage Array)
  • Advantech Industrial Computer 510 Case

#LocalAI, #SelfHosted, #Homelab, #BudgetBuild, #ComfyUI, #HardwareHacking

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ℒӱḏɩę 💾☮∞🎶♲☀🔋 @Lydie@tech.lgbt
· 2mo ago

Local solar powered AI server build log:

07-06-2026: Assembled the core components for the first time. Had to update BIOS to make the 2080 ti work in this old board. Waiting for a couple odds and ends to arrive tomorrow, then I can button it up and begin the software work.

Current spec list:

  • Intel Core i7-3930K CPU
  • Gigabyte GA-X79-UD5 Motherboard
  • 64GB DDR3 RAM (8 x 8GB G.Skill Ripjaws X F3-1600C9D-16GXM)
  • 3 x NVIDIA GeForce RTX 2080 Ti Blower Edition GPUs (33GB Total VRAM)
  • Corsair RM1000e 1000W Power Supply (Refurbished)
  • 240GB SATA SSD (OS Boot Drive)
  • 3 x 1TB SATA SSDs (AI Storage Array)
  • Advantech Industrial Computer 510 Case

#LocalAI, #SelfHosted, #Homelab, #BudgetBuild, #ComfyUI, #HardwareHacking

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Cyber Saiyan @cybersaiyan@infosec.exchange
· 2mo ago
⚙️ Battle of Saiyan is back — and the community is building something serious 3D-printed chassis, custom electronics, metal spinning blades. A plexiglass arena. And robots that fight until one stops moving. This is Battle of Saiyan — a community-run antweight combat village coming to RomHack Camp 2026. Participants can bring their own bot or just come and watch the destruction up close. Engineering, problem-solving, and a lot of kinetic energy — all in one arena. Battle of Saiyan is one of the community villages at RomHack Camp 2026 — Oct 2–4 at Flaminio Village, Rome. 👉 https://romhack.io #RomHack2026 #HardwareHacking #MakerCulture #RobotCombat #Cybersecurity
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ℒӱḏɩę 💾☮∞🎶♲☀🔋 @Lydie@tech.lgbt
· 2mo ago
Junk-box local AI server build log: -Purchased 2 more 2080 Ti GPUs -Industrial Chassis in hand -32GB DDR3 in hand -Mobo+CPU+PSU ordered. -Intel Core i7-3930K (6 Cores / 12 Threads) -Gigabyte GA-X79-UD5 (LGA 2011 Socket) -32GB DDR3 (4 x 8GB Sticks, configured for Quad-Channel) -3 x nVIDIA GeForce RTX 2080 Ti Blower Edition (11GB each / 33GB Total VRAM) -Rosewill 80-Gold 1000W Power Supply -Multiple SATA SSDs (RAID 0) -Advantech Industrial Chassis -Operating System: Ubuntu Linux 24.04 LTS -Text Generation Frontend: Text Generation WebUI (Oobabooga) -LLM Engine Backend: ExLlamaV2 (EXL2 model format) -Image Generation Platform: ComfyUI -Multi-GPU Orchestration: ComfyUI-MultiGPU (DisTorch 2.0) -Networking & Remote Access: NetBird VPN (WireGuard) #LocalAI, #SelfHosted, #Homelab, #BudgetBuild, #ComfyUI, #HardwareHacking
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ℒӱḏɩę 💾☮∞🎶♲☀🔋 @Lydie@tech.lgbt
· 2mo ago
OK so here’s my evil plan for a junk-box local AI server built from ancient DDR3 era hardware and crap I have laying around. I am stacking three blower RTX 2080 Tis for the 33GB of VRAM (I already have one in hand). I scored an Intel Core i7-3930K and X79 motherboard on eBay for ~$100 bucks and I already have 32GB DDR3 RAM that I'll thief from my old FX8350 rig. A 1000W PSU will power it, I'll power limit the GPUs. This Win10+AMD+Ollama girl will be jumping head first into Linux, Intel, nVidia, GPU stacks, and will run ExLlamaV2 via Oobabooga. For diffusion I am using ComfyUI. Hell I’m even striping junkbox SATA SSDs into a RAID 0 array. Then I'll use NetBird to access my secure solar powered local AI from anywhere. $650 spent; local AI frankenserver coming soon...stay tuned! #LocalAI, #SelfHosted, #Homelab, #BudgetBuild, #ComfyUI, #HardwareHacking
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