M1 Mac RAM and SSD Upgrades Found to Be Possible After Purchase - MacRumors
Teardown Reveals New MacBook Pro Without Touch Bar Has Removable SSD - MacRumors
How to Upgrade the PCIe SSD in a 13-inch MacBook Pro w/ Retina display (Late 2013 - Early 2015) - YouTube
MacBook Pro 13" Touch Bar 2018 Teardown - iFixit
Amazon.com: Fledging 1TB Feather M17 PCIe NVMe Gen 3.0x4 SSD Upgrade – DIY kit & OS Included – Compatible with Apple MacBook Pro 13" A1708 2016 & 2017 : Electronics
iFixit tears down the new entry-level 13" MacBook Pro, deems it very hard to repair - GSMArena blog
Macbook Pro SSD Upgrade In 2020 (Make Your Old Mac Run FAST) - 2012 Pro With Retina Display - YouTube