Success! Big Sur install with OCLP on Mac mini 2009 3,1 with 6GB of ram and SSD. Running okay but does slow down with a few windows open. Recommended to upgrade to
OWC SSD Upgrade Kits for 27-Inch iMac 2009
Apple Mac mini (Late 2009)-Upgrade to 8GB RAM/256GB SSD/Mavericks 10.9.1 (GR) - YouTube
How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac
Mac mini "Core 2 Duo" 2.53 (Late 2009) Specs (Late 2009, MC239LL/A, Macmini3,1, A1283, 2336): EveryMac.com
upgrading my late2009 MacMini | MacRumors Forums
Mac mini: teardown, adding second hard drive, 1TB upgrade kit | AppleInsider
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Mac mini Model A1283 Hard Drive Replacement - iFixit Repair Guide
OWC SSD Upgrade Kits For Mac mini 2009
Mac mini Index | Low End Mac
Mac mini: teardown, adding second hard drive, 1TB upgrade kit | AppleInsider
Apple Mac mini (Late 2009)-Upgrade to 8GB RAM/256GB SSD/Mavericks 10.9.1 (GR) - YouTube
Not the upgrade we were hoping for: The 2014 Mac Mini reviewed | Ars Technica
How To Upgrade Your Mac Mini with an SSD (2023 updated) | Upgradeable Australia
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Apple / Mac Mini Late 2009 ssd'li at sahibinden.com - 1001602310
Mac mini Model A1283 Hard Drive Replacement - iFixit Repair Guide
Mac mini Model A1283 Hard Drive Replacement - iFixit Repair Guide
SSD Upgrade 1 TB Mac mini 3,1 Early 2009 und Late 2009 | Comtecshop24.net
/cdn.vox-cdn.com/uploads/chorus_asset/file/15836370/mac-mini-hard-drive-replacement-ifixit.0.0.1464991839.jpg "I performed open heart surgery on my Mac mini, and it was horrifying - The Verge")