> If you can deliver the same thing in fewer correct lines of code
it really depends on what you're doing. If your goal is "become interoperable with the N different and incompatible network protocols that people have devised for doing task X" I'd really like to know a solution that doesn't have at least some part of the amount of code that scales with N.
Example: consider https://bitfocus.io/connections which connects to 700 different things. Right now it's written with Node.JS, with one repo per connection (example: https://github.com/bitfocus/companion-module-meyersound-gala...). Let's say you want to make a similar product but that runs on ESP32 where performance is paramount so you need C++ or Rust. How do you do that without at least as many lines of code as the existing JS implementations for every system supported by Companion?
This is still not an argument for more lines of code. It demonstrates that lines of code are positively correlated with number of features, yes. But that's like saying the number of nails scales with the size of a house. More nails does not create more house.
Without looking at the details, I expect that each network protocol has a checksum of some form, and there are likely a lot less than N different checksum algorithms. Similarly I expect several will have encryption - using one of a few standard algorithms (if any doesn't use a standard algorithm you have a strong case to say not supported). I also expect that there is a lot of protocol parsing - this can be done as custom hand coded for each, or using a parsing framework (and likely there are some places of generic code in between).
Parent said "I'd really like to know a solution that doesn't have at least some part of the amount of code that scales with N."
You're arguing the inverse: that at least some parts of the code are independent of N. Sure. But the topic is the part that isn't.