Three characters on the .net in the X-to-Y form. The K at the end does something useful: in technical shorthand K routinely stands for kilo, for Kubernetes, for knowledge, and for thousand, which gives the name several credible technical readings.
Edge to Kubernetes describes an actual architecture problem that infrastructure companies are selling into right now. Energy to kilowatt fits power systems. Experience to knowledge fits learning and research platforms. Any of them is a defensible position for a buyer who wants the name to mean something specific.
If none of them fits, the letters are just letters, and a three-character domain with no baggage is worth holding on scarcity alone. The pool has been closed for decades and the only movement in it is names leaving.
The .net is right for technical infrastructure, where it reads as native rather than second choice.
Short, structured, listed for sale. Enquiries welcome.