I like to tinker with anything tech related.
Ita easy to do in unraid, you set it up per share, so say you have a “media” share you can change the settings to include a cache drive and then set it to write to the cache drive first and then more to array. If you don’t have a cache drive or want to add a other you can do that by installing the ssd, booting up, stopping the array and adding in a new cache drive (you can add it to your existing cache pool to increase its size or create a new one and keep them separate for separate uses)
You would only likely get caught if you either do something stupid or someone tells Microsoft or Adobe with evidence, even then, the process to grass on them is a ballache, so if someone does actually take the time to do it, then you must have pissed them off so bad you might deserve it.
Why not use FOSS alternatives, or at least say you do?
If your stealing assets and IP, its just a matter of when you get caught, not if.
I’ve gone with Unraid and consumer level hardware (intel i3 12100 and 16gb of standard ddr4 ram) the only “server hardware” I have, is an LSI HBA card that’s in IT mode so I can connect more HDDs.
I’m even used SMR drives in my array, just use a good CMR drive for parity and the biggest SSD you can get for your cache drive and you will be good to go.
Check out Spaceinvader One on YT, he alone is all you need when it comes to everything and anything unraid.