I have the Jonsbo N1 on my Amazon “DIY NAS” list.

However, once my DS415+ dies, I’m currently more inclined to go with a TerraMaster F4-423 NAS and replace their OS with something else. I’ve read that this TerraMaster model is basically an Intel NUC with a SATA card. And their OS is on a flash drive plugged into an internal USB port - so, very easy to change/replace.

I’ve also read that UGREEN devices should be easy to replace the OS on. So, that’s another option I keep in mind.