Did you know that Haskell is used in production at Meta? 🤯 In our latest article, we talk with Simon Marlow from Meta about their Haskell projects – Glean and Haxl – and his thoughts about Haskell in the industry. Read on our blog: https://t.co/F8X813l3td

Calling all #functionalprogrammers especially those based in Australia or nearby timezones! This is a top event with great speakers @deanwampler @simonmar & @kmett #Scala #Erlang #Haskell

A farewell to Simon Peyton Jones as he leaves Microsoft Research Subject: RE: New horizon   I would like to add a few words to what Chris has written.  I know I am also speaking for Mads, the current lead designer of C# (cc’d)

If you're interested in building Glean into your system or workflow, want to contribute, or have comments/suggestions, we'd love to hear from you! File issues on github ( https://t.co/pDy41ymaRn). [8/8]

Glean is the work of many people, notably @_rl_, Chris Kuklewicz, @katiejots, @Marcelolaza, @donsbot, @dzsol @Nathan_Hawkes_ and others. [7/8]

Initially we've open-sourced indexers and schemas for Javascript (Flow) and Hack/PHP, there also exist indexers for Python, Rust, C++/Objective C, and Java that we hope to open-source in the future. We'd welcome community-contributed indexers for other languages. [6/8]

A key feature of Glean is that it lets you derive additional facts automatically. This can be used for making queries more efficient, or for providing abstraction layers and encapsulating complex queries. https://t.co/iUBCwopyn0 [5/8]

Once you have the data, Glean provides a declarative query language called Angle for accessing it. You can build complex queries matching on the structure of the data. https://t.co/sxxUSJgtxW [4/8]

At its heart, Glean is a system for compactly storing strongly-typed trees. You define a schema for the data you want to store (e.g. here's the one for Flow/Javascript: https://t.co/uM4sPzdbIl), Glean typechecks the data, and stores it efficently while de-duplicating it. [3/8]

Glean is designed for high-performance large-scale source code indexing. Store information about your source code and query it efficiently, to power things like IDEs, code browsers, and analysis tools. [2/8]

I'm delighted that we're finally able to open source Glean, the system we're building at Facebook for collecting and querying information about code: https://t.co/xhrwWEFmrT [1/8]

Do you want to work on PyTorch? The PyTorch team at Facebook is hiring! Remote in many locations is OK and most things we do are open source. Reach out to me in DMs if you're interested.

We've added Haskell to the list of programming languages supported by Thrift and open sourced the hsthrift package. Haskell Thrift is compatible with all fbthrift languages, allowing your projects to freely communicate with other services in any language. https://t.co/WFYtjjyrbY

Great news! Thanks, @simonmar, for giving us the opportunity to help with some of the work leading up to this release.

Here's the github repo:

We just open-sourced our Haskell Thrift Compiler:

The GHC Steering Committee would like to know whether you would like having a new language extension -XGHC2021 that covers lots of existing ones. New -XGHC20xx extensions would come out every 1, 2, or 3 years (cadence under debate). Express your opinion at

There's now an actual job advert!