Issue 95

content/issues/95.markdown

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+<!-- 2018-02-22 -->
+
+Welcome to another issue of Haskell Weekly!
+[Haskell](https://haskell-lang.org) is a safe, purely functional programming language with a fast, concurrent runtime.
+This is a weekly summary of what's going on in its community.
+
+Want to see something featured in Haskell Weekly?
+Open an issue or pull request [on GitHub](https://github.com/haskellweekly/haskellweekly.github.io).
+
+## Featured
+
+-   [GSoC 2018 ideas](https://summer.haskell.org/ideas.html)
+
+    > This is a list of ideas for students who are considering to apply to Google Summer of Code 2018 for Haskell.org.
+
+-   [Haskell Symposium 2018](https://www.haskell.org/haskell-symposium/2018/)
+
+    > The Haskell Symposium aims to present original research on Haskell, discuss practical experience and future development of the language, and to promote other forms of denotative programming.
+
+-   [Haskell ecosystem requests](https://www.snoyman.com/blog/2018/02/haskell-ecosystem-requests)
+
+    > A single comment in a mega-thread on GitHub is hardly a good place to write down these requests, however, and it seems like there's no progress on them. I'm going to instead put down these ideas here, with a bit more explanation, and a few more ideas that have popped up since then.
+
+-   [Atomic expressions generically](https://neilmitchell.blogspot.com/2018/02/atomic-expressions-generically.html)
+
+    > For certain hints HLint needs to determine if a Haskell expression is atomic. I wrote a generic method to generate expressions and test if they are atomic.
+
+-   [The magic "Just do it" type class](https://www.joachim-breitner.de/blog/735-The_magic_&#x201c;Just_do_it&#x201d;_type_class)
+
+    > What matters is that once I wrote that type signature, I feel silly having to also write the code, because there isn't really anything interesting about that. Instead, I'd like to tell the compiler to just do it for me!
+
+-   [Applicative functors for fun and parsing](https://arunraghavan.net/2018/02/applicative-functors-for-fun-and-parsing/)
+
+    > I am very excited by how elegantly Haskell allows us to express these ideas, using fundamental aspects of its type(class) system.
+
+-   [Applicative parsing](https://blog.lahteenmaki.net/applicative-parsing.html)
+
+    > I heard about Applicative Parsing, and learned that even the state of the art monadic parser combinator libraries in Haskell actually come with applicative interfaces. So, what's going on?
+
+-   [Applicative parsing 2: Putting the pieces together](https://mmhaskell.com/blog/2018/2/19/applicative-parsing-ii-putting-the-pieces-together)
+
+    > This week, we'll put these pieces together in an actual parser for our Gherkin syntax.
+
+-   [Why are types so cool, Part 1: Result types](https://blue-dinosaur.github.io/haskell/type-theory/programming/2018/02/19/result-types.html)
+
+    > Haskell is denser than Python code, and it is semantically richer. It can convey more precise and richer meanings about what the code does. And Haskell can type-check that code and guarantee that it makes sense. It won't throw exceptions or errors.
+
+-   [ASCII fractals](https://janmasrovira.gitlab.io/ascetic-slug/post/ascii-fractals/)
+
+    > Getting hypnotized by the shape of a fractal is certainly fascinating. In this blog, we will write a Haskell program that creates fractals from a base pattern. The recursive nature of the fractals allow a simple implementation in Haskell.
+
+## Jobs
+
+-   [Developer at Tsuru in Tokyo](https://np.reddit.com/r/haskell/comments/7ysft5/tsuru_is_hiring/duits8s/)
+
+    > Tsuru Capital is hiring, full time and intern positions are available. Haskell knowledge is required, experience with pricing futures/options would be nice but not necessary. Located in Tokyo, company language is English.
+
+-   [Remote devops at FP Complete](https://twitter.com/snoyberg/status/965969385755172869)
+
+    > We're continuing to expand our devops team at FP Complete. Remote work, awesome team, modern tooling, interesting projects.
+
+## In brief
+
+-   [Free `Monad` and free `Applicative` using single `Free` type](http://oleg.fi/gists/posts/2018-02-21-single-free.html)
+-   [Free monoidal profunctors](https://bartoszmilewski.com/2018/02/20/free-monoidal-profunctors/)
+-   [Heterogeneous collections](http://www.hsyl20.fr/home/posts/2018-02-21-heterogeneous-collections.html)
+-   [hnes: NES emulator written in Haskell](https://github.com/dbousamra/hnes/tree/02a1db57c4cc045af64892919c395f09d129f9fd)
+-   [Low-level, low-overhead Haskell bindings to Vulkan API](https://github.com/achirkin/vulkan/tree/cfb85bc7096abf6099b9253ac3da28d4ffd40ee4)
+-   [Stack 1.6.5 released](https://github.com/commercialhaskell/stack/releases/tag/v1.6.5)
+-   [Ultra light Haskell Docker image](https://github.com/naushadh/hello-world/tree/3a4ecb3e49a7cd1624c385bdb808518182fd17cb#example-1-ultra-light-docker-image)
+
+## Package of the week
+
+This week's package of the week is [massiv](https://hackage.haskell.org/package/massiv-0.1.0.0),
+a library for multi-dimensional arrays with fusion, stencils and parallel computation.
+
+## Call for participation
+
+-   [graphql-api: How to throw an error from a handler?](https://github.com/haskell-graphql/graphql-api/issues/172)
+-   [purescript: `:browse` in REPL doesn't show re-exported names](https://github.com/purescript/purescript/issues/3247)
+-   [stack: Allow GitHub shorthand for `extra-deps`](https://github.com/commercialhaskell/stack/issues/3873)
+
+## Events
+
+-   February 22: [PureScript happy hour with Justin Woo](https://www.meetup.com/Berlin-Functional-Programming-Group/events/246441427/) in Berlin, Germany
+-   February 23: [Software Foundations by Benjamin Pierce](https://www.meetup.com/Austin-Types-Theorems-and-Programming-Languages/events/245115075/) in Austin, Texas, United States
+-   February 24: [A note on distributed computing with Indradhanush Gupta](https://www.meetup.com/Papers-we-love-Bangalore/events/247608496/) in Bangalore, India
+-   February 26: [Haskell peer study group](https://www.meetup.com/Vancouver-Functional-Programmers/events/247554893/) in Vancouver, Canada
+-   February 27: [Auckland FP Meetup 3-topic event: Nix/NixOS; Haskell web dev; Lisp](https://www.meetup.com/Functional-Programming-Auckland/events/247729046/) in Auckland, New Zealand
+-   February 28: [Programs writing programs](https://www.meetup.com/London-Haskell/events/247767200/) in London, United Kingdom
+-   March 1: [Women who are functional programmers presentation, network and discussions](https://www.meetup.com/NY-Women-Who-Functional-Code/events/243905448/) in New York City, New York, United States