I had used Lamomo LED strip lights (ordered from Amazon) for some projects in the house and really liked them, so decided to use them for the cabinet lighting. It was tough to measure exactly how long the strip needed to be. I ended up with a 32' strip - the 16' didn't quite cover the entire length of the cabinets. It didn't miss by much, and it's questionable whether anyone would have noticed, but I figured I'd rather be safe.
There was one complication caused by this - the 32' strip needs 24v, and the power drop in the cabinet is 12v. I had to add a 12v to 24v boost converter to handle this.
To run the LED strip, I needed to drill a few holes in the thin panels that separate cabinets. I also was adding a strip light under the outside awning, so used Wago 221-413 connectors to connect the power up. White duck tape was used to keep wiring out of the way.
I didn't take a lot of photos during the project, but these should give a good idea of how things proceeded. Overall, this wasn't particularly difficult, and required maybe $60 worth of parts and a few hours. Going with the 16' strip would have saved about $20 or so.