[Cthulhu_]

The fact you worry about what language they're written in - while you shouldn't need to ever edit any of their code - already implies they're not boring and you're overthinking the decision already.

Pick the one that gets you up and running the fastest, ideally one that doesn't rely on you installing additional runtimes.

[9dev]

In principle you’re absolutely right, but Hugo actually comes with lots of strings attached due to their choice of Go, like having to use Go templates for example - which can be weird if you don’t have a Go background. The more elaborate constructs you’re trying to build, the more you need to research how the Hugo Go runtime works to sort out quirks.