Geoff Williams

Homelab, 3D printing, debuging and random notes

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  • #rook #ceph #homelab #nas #lvm #kubernetes #storage #devops

    Homelab - Migrating off Rook/Ceph

    12 Sep 2026

    Swapping a nuclear weapon for a flyswatter - moving my homelab off Rook/Ceph to plain LVM.

  • #rook #ceph #homelab #nas #lvm #kubernetes #storage #architecture #upgrades #devops

    Homelab - Agentic AI vs routine maintenance + Rook/Ceph upgrade

    10 Sep 2026

    How a routine homelab OOM problem led to a Rook/Ceph and Kubernetes upgrade - and ultimately deciding simpler local storage was the better fit

    Homelab - Agentic AI vs routine maintenance + Rook/Ceph upgrade
  • #python #networking #programming #opnsense

    Since when does ping have state?

    09 Sep 2026

    Python ping3 keeps succeeding when the internet is down (pf/OPNsense state table)

  • #hardware #pcb #design #manufacturing #education #sbom

    Designing a PCB for assembly

    02 Aug 2026

    My first PCB assembly project - learning KiCad, designing a buck converter, navigating manufacturing gotchas, and discovering what SBOMs have to do with hardware.

    Designing a PCB for assembly
  • #security #java #sbom #maven #programming

    Java and Maven - NVD and SBOM

    18 Jul 2026

    NVD made Maven CVE scanning painful, so I built an SBOM pipeline with CycloneDX and Grype that actually fails the build when vulnerabilities are found

    Java and Maven - NVD and SBOM
  • #linux #virtualbox #storage #devops

    Growing VirtualBox disks (Linux)

    18 Jul 2026

    How to grow a Linux VirtualBox disk when your VM runs out of space, from VBoxManage through LVM, growpart, and gparted

  • #raspberrypi #networking

    Raspberry Pi WIFI files in Raspberry Pi OS Bookworm/Trixie

    11 Jul 2026

    Configure Raspberry Pi OS Bookworm/Trixie Wi-Fi headlessly using NetworkManager keyfiles, including SD card setup and nmcli examples

  • #ai #art #philosophy #education #3dprinting

    AI Art Class

    18 Jun 2026

    Claude explores AI-assisted 3D sculpture, turning artwork references into printable designs and creating an original “self-portrait” inspired by the idea of a strange loop

    AI Art Class
  • #3dprinting #art #fusion360 #blender #education

    3D Printing Textures

    31 May 2026

    Design and 3D print a textured rocket using Fusion 360 for precise CAD, then Blender for organic knurled surface displacement, UV mapping and print-ready meshes

    3D Printing Textures
  • #raspberrypi #cyberdeck

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 4 - Startup script

    25 May 2026

    Turn a Raspberry Pi cyberdeck into a sleeper build with a systemd startup service, PipeWire audio, nostalgic boot sounds, and plans for future desktop apps

  • #raspberrypi #cyberdeck #3dprinting

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 3 - Assembly

    25 May 2026

    Designing and 3D printing custom frames to mount an NVMe base and USB speaker in a Raspberry Pi cyberdeck, with plenty of fiddly case-fitting and lessons in mechanical drawings

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 3 - Assembly
  • #raspberrypi #cyberdeck #3dprinting #hardware

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 2 - NVME upgrade

    24 May 2026

    Upgrading the cyberdeck to a larger NVMe SSD turns into a Dremel rescue mission after a standoff gets stuck, followed by a redesign using 3D-printed supports and threaded inserts

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 2 - NVME upgrade
  • #raspberrypi #cyberdeck #hardware

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 1 - Pi 5 + Waveshare DSI Display

    24 May 2026

    Upgrading a Raspberry Pi 4 VT100 cyberdeck to a Pi 5 with NVMe and PoE, fixing an old DSI display, and adding USB audio along the way

    A Raspberry Pi 5 VT100 Cyberdeck build - Part 1 - Pi 5 + Waveshare DSI Display
  • #3dprinting #fusion360 #education

    What I learned about designing for 3D printing in Fusion 360

    19 May 2026

    Fusion 360 tips for cleaner, reusable sketches, stronger 3D-printed designs, PCB enclosures, useful workflows, and lessons learned from real projects

  • #networking #opnsense #hardware

    DIY Router

    11 Apr 2026

    Replacing an ageing SBC router with a DIY Mini-ITX build, comparing appliances and mini PCs, then deploying OPNsense bare metal for simplicity and reliability

    DIY Router
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