Resources

Annex-Engineering - Sherpa Mini/Micro
Bondtech Extruders
Orbiter Extruder - LDO extruder, available at multiple suppliers; the LDO webpage for it however, is down.
Vz-HextrudORT

BTT Wiki - website does not always work, their docs repo has the same contents
LDO Wiki - documentation for LDO kits and parts, no github links for the wiki pages
Prusa Forum
Ratos Config examples
TeamFDM - mostly directed to Voron builds, but a wealth of information that can be useful for many printers
Voron Design Forum

Bambu Hotend - Cheaper alternative with decent performace, a variation of most printheads are starting to support this.
neXt-G-Hotend
Revo Ecosystem - E3D Revo Line
Phaetus - Search for the repo of the hotend you have.
Slice Engineering - Mosquito Hotends
XG-Hotend

BTT USB ADLX345 - Amazon
DIY ADXL345 - not terrible difficult to setup, mainboard manuals sometimes have the wiring diagram. If you opt to use a raspberry pi or pi pico, here is the official klipper documentation for setup
Fysetc Portable Input Shaper - Amazon
Note: it is not uncommon for toolhead boards to have input shaping built-in, check that out if you are buying one, you may not need another board.

Fysetc Manuals - Fysetc Prusa MK3 Clone, Fysetc Voron 2, Fysetc Voron0, Fysetc Voron Trident
LDO Motors Kits - Vorons, Milo
RatRig Manuals - RatRig V-Core 3.1,RatRig V-Minon
Rolohaun 3D - manuals for Rolohaun printers, rotation distance calculator (e-steps), and klipper tips
Printers for Ants - Manuals for Voron0 modifications. Also have some build references for scaled down 2.4 (Micron) and Trident (Salad Fork). Owned by hartk.
Prusa guides and manuals
Voron Design Manuals - Voron0, Voron 2, Voron Trident

Main Site - documentation and configuration guies, datasheets, tutorials
Pinout Diagram - GPIO can be used with Klipper
Where to buy - Stock can be hard to find, check rpilocator, Microcenter, or Amazon
Alternatives
- BTT-Pi
- Orange Pi - many variants to choose from
Helpful Programs
- Balena Etcher - flash OS images to USB/SD, alternative to Raspi Imager
- Chrome Secure Shell - SSH extension for chrome, just type "ssh" followed by target in a new tab or window
- Filezilla - remotely add/remove files from your raspberry pi (or other network devices)
- Format USB - fast and easy way to format USB/SD devices
- Notepad++ - similar to notepad, more powerful and has plugins for many filetypes
- Raspi Imager - easy creation of SD cards for raspi
- Putty - ssh client
- Visual Studio Code - edit code and files, ssh client, the do-everything tool.