EveryMac.com is the complete guide to every Macintosh, iPod, and Mac clone in the world, with technical, configuration, and pricing info.
MaxUpgrades hardware upgrades for Apple hardware.

YouTube - Surprise! My Dad Revisits Our First Mac from 1990 on 2022-11-12, by Mac84.

YouTube - Can Linux Save a 16 Year Old iMac? on 2023-07-30 by Action Retro.

Running Mac OS Sonoma on a Trash Can Mac Pro? Easier and cheaper than you think! on 2024-01-08 by Jon Obst.
Can This Decade-Old Mac Pro Compete With Apple Silicon? on 2022-11-11, by This Does Not Compute.
Installing Linux on Apple's Stupid Trashcan exploring Bazzite Linux on a Trashcan Mac Pro, on 2023-09-09, by Action Retro.
The Ultimate Linux Gaming Trashcan on 2024-09-24, by Action Retro. (Spoiler alert: Windows 10 and the AMD driver can use CrossFire to use both D[3,5,7]00 GPUs.

Modern Ubuntu is KILLER on old Intel Macs! on 2023-07-08, by Action Retro.

MacBook Pro Fan Daemon (mbpfan) for Linux:

• Allan McRae - MBP Fan Daemon Update
• Allan McRae - Simple MacBook Pro Fan Daemon
• GitHub - anak10thn/ign-mbpfan fan control macbook pro for IGN.
• GitHub - johnstef99/mbpfan Custom macbook fan control for arch linux.

Patch for GitHub - anak10thn/ign-mbpfan to work with newer Linux Kernels that have moved the CPU temp sensor file:

--- src/mbpfan.c.original                                                                      
+++ src/mbpfan.c                                                                               
@@ -67,7 +67,7 @@                                                                              
     t_sensors *s = NULL;                                                                      
 
     char *path = NULL;                                                                        
-    const char *path_begin = "/sys/devices/platform/coretemp.0/temp";                         
+    const char *path_begin = "/sys/devices/platform/coretemp.0/hwmon/hwmon1/temp";            
     const char *path_end = "_input";                                                          
 
     int path_size = strlen(path_begin) + strlen(path_end) + 2;   

By Action Retro on YouTube:

• Can an iMac G3 with OpenBSD be my daily driver? on 2022-01-15
• Installing OpenBSD on the Fastest iMac G3 on 2023-11-11.

YouTube - The Power Macintosh G4 (1999) by 65scribe.

Sonnet G5 Jive allows adding an extra three hard drives and a SATA controller to a Power Mac G5.

YouTube - Upgrading the "Jurassic Mac" Quadra 700 to Unspeakable Levels! on 2021-05-22, by Action Retro.

DOOM, but BeOS on 2023-04-09, by Action Retro.