now it is generally a little faster than the easyjson approach.
goos: linux
goarch: amd64
pkg: github.com/nbd-wtf/go-nostr
cpu: AMD Ryzen 3 3200G with Radeon Vega Graphics
BenchmarkParseMessage/stdlib-4 90 15616341 ns/op
BenchmarkParseMessage/easyjson-4 110 11306466 ns/op
BenchmarkParseMessage/simdjson-4 162 7779856 ns/op
PASS
ok github.com/nbd-wtf/go-nostr 5.547s