Russian enthusiasts are planning to build their own DDR5 RAM amidst the worldwide shortage — do-it-yourself RAM is as 'easy' as sourcing your own memory modules and soldering them on empty PCBs

https://www.tomshardware.com/pc-components/ddr5/russian-enthusiasts-are-building-their-own-ddr5-ram-amidst-the-worldwide-shortage-as-easy-as-sourcing-your-own-memory-modules-and-soldering-them-on-empty-pcbs