linear
Lowdimensional linear algebra primitives for Haskell. (by ekmett)
eff
🚧 a work in progress effect system for Haskell 🚧 (by hasura)
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linear  eff  

3  11  
170  476  
  0.4%  
5.2  0.2  
23 days ago  about 1 year ago  
Haskell  Haskell  
BSD 3clause "New" or "Revised" License  ISC License 
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars  the number of stars that a project has on GitHub. Growth  month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars  the number of stars that a project has on GitHub. Growth  month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
linear
Posts with mentions or reviews of linear.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 20211205.
 Advent of Code 2021 day 06

Probabilistic modelling in Idris: engineering as research
I've come to love the linear approach, where instead of working with Naperian (Representable) functors, you work with Distributive functors.

Monthly Hask Anything (June 2021)
See also the linear library, it contains types like data V3 a = V3 a a a with all of the useful instances.
eff
Posts with mentions or reviews of eff.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 20211201.

Opinions on Reader + Continuationbased IO?
Here is link number 1  Previous text "eff"
This is essentially how continuation based effect systems work, check out eveff and eff.

Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fusedeffects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
While her eff is still under construction, there are relative more mature pieces like Koka etc. I'd very much like to understand how her concerns map to those other effect systems, but can't find more writeups about the design space of effect systems.

Languages that don't support ErrorCatching as a Control Structure?
There are a few languages that have algebraic effect systems, most notably Haskell, but these systems are implemented as libraries, not baked into the language (which can have advantages and disadvantages).

The Problem of Effects (2020)
Let me tell you what I'm worried about with effects systems: One of the smartest people I know of has a library called Eff https://github.com/hasura/eff that efficiently implements effects through some modifications to GHC. The thing is, she's pretty much stopped working on because she found some really nasty semantic edgecases that she couldn't resolve to her satisfaction. (I don't understand the problems well enough to describe them, and I think they're specific to lazy languages, but it has left me cautious about the effect model in general.)

Thoughts on polysemy?
eff was supposed to solve (some of) the above problems, but it's stalled now.

A solid GUI Framework for Haskell?
Why do you need a GUI library, if you can write your application using extensible effects frameworks, just choose any and enjoy!
 Monthly Hask Anything (June 2021)

I’ve tried to learn Haskell several times. But keep failing
It means that you can see a type signature like this and you know immediately how it will provide what you want in the context of an arbitrary monad "stack." It means that when you are looking to understand how to use e.g. MegaParsec it doesn't surprise you that the discussion of the relevant monads is the first thing in the tutorial. It means you know why this exists https://hackage.haskell.org/package/scotty0.12/docs/WebScottyTrans.html and maybe you can even fumble through https://docs.servant.dev/en/stable/cookbook/hoistserverwithcontext/HoistServerWithContext.html and use it in your app even if you don't otherwise understand all the typelevel magic happening in Servant. You'll also understand what to do if you're faced with a type signature in IO or Maybe or whatever concrete monad and you have to integrate it with a more generalized monad. You may also start to understand why everyone is so interested in effect systems.
What are some alternatives?
When comparing linear and eff you can also consider the following projects:
nuha
nimber  Finite nimber arithmetic
fusedeffects  A fast, flexible, fused effect system for Haskell
frpzoo  Comparing many FRP implementations by reimplementing the same toy app in each.
movingaverages
polysemy  :gemini: higherorder, noboilerplate monads
freersimple  A friendly effect system for Haskell
mcmc  Markov chain Monte Carlo with MetropolisHasting algorithm
linearaccelerate  Instances to mix linear with accelerate
linearalgebracblas  Haskell BLAS bindings
ihp  🔥 The fastest way to build type safe web apps. IHP is a new batteriesincluded web framework optimized for longterm productivity and programmer happiness