Barebones where the RAM and memory are missing and have to be installed by the user usually do not come with an operating system.

Gemäss Intel kannst du bis zu 8 GB Ram verbauen. https://ark.intel.com/content/www/us/en/ark/products/95078/intel-nuc-kit-nuc6cays.html kompatibel ist folgende Liste: https://www.digitec.ch/de/s1/producttype/ram-2?pdo=10-3195%3A19178%7C10-419%3A566199%7C10-419%3A1138%7C10-420%3A199041%7C10-420%3A180785%7C10-420%3A300642&tagIds=76

Unfortunately I don't know Zwift. I use it to control a complex model railway and documentation with Google docs, which works fine, but had to fit 6 GB instead of the minimum 2 GB.

Am besten installierst du deine Lieblings-Linuxdistro, und folgst dem offiziellen OpenVPN Guide: https://openvpn.net/community-resources/how-to/

According to my information, a maximum of 3840x2160 is supported.

I only got the device yesterday. I will have a look today to see what can be adjusted.

guggst du hier: http://compatibleproducts.intel.com/ProductDetails/ExportPeripheralInfo?moduleName=Intel%C2%AE%20NUC&productType=Mini%20PCs&productName=Intel%C2%AE%20NUC%20Kit%20NUC6CAYS

The following product meets the required specifications: Kingston ValueRAM (1x, 4GB, DDR3L-1600 (PC3-12800), SODIMM 204)