[cies]

Sure...

Stackage: curated sets of packages that are known to work together.

LTS Haskell: Stackage + pinning to a GHC version + seperating non-breaking upgrades (minor LTS version increases) from breaking ones (major increases).

SSL downloading.

Stack: also downloading/building of GHC if it does not exists, understands mega-repo's (many packages in one git repo), eases working with shared local pools of packages, eases working with dependencies that are not in Stackage/LTS, and more that I probably forget.

A more detailed explanation of the merits of Stack can be found in this video: http://begriffs.com/posts/2015-06-22-haskell-stack-build-too...

[zak_mc_kracken]

So basically everything that's been available on the JVM for more than ten years.

I understand your excitement to finally have that if you didn't beforehand, but this is pretty old stuff.

[oconnor0]

What about that has the JVM had for years?

[justthistime_]

Isn't that all basic stuff SBT did for years already?

[reagency]

What is SBT?

But yes, these are all table stakes that Haskell has been lagging on, in part because Haskell library versions break compatibility very frequently, and Haskell has a very non-local/modular way of building source.

[girvo]

SBT is the Scala build tool (hence the name, I guess) if I recall correctly.