Is it that bad? There is plenty of technical shortcuts which differ in a single letter - that should not be an issue. Plus one is pronounced /ˈbiːtriː/ and the other likely /ˈbɛtə/ (or /ˈbɛtəɹ/ in the US :)).
I think that this is particularly bad since there are many different pronunciations for btrfs. E.g. Wikipedia says
> Btrfs (pronounced as "better F S", "butter F S", "b-tree F S", or simply by spelling it out)
and I heard all of them in practice (except for spelling it out).
While you can hear the difference for "b-tree F S", the other ones are much harder to distinguish.
Swedish person thinking I'll just pronounce it "bee tee arr FS". I mean that's what it says and it isn't a tounge warper so...
Same with SQL, never got the sequel / whatever pronunciation, I just say the darn letters.
> Btrfs (pronounced as "better F S", "butter F S", "b-tree F S", or simply by spelling it out)
and I heard all of them in practice (except for spelling it out). While you can hear the difference for "b-tree F S", the other ones are much harder to distinguish.