4 ms·

Is there anything of any significance written in Haskell outside academia?

dgellow 6y ago
Depends your definition of "significance" but Cardano is written in Haskell, and its main smart contract language is also Haskell. https://cardano.org/ https://cardano.org/
tome 6y ago
It might help if you define "of significance".
mumblemumble 6y ago
Pandoc comes to mind.
lalaithion 6y ago
Shellcheck - https://www.shellcheck.net/ https://www.shellcheck.net/ PostgREST - https://postgrest.org/en/v7.0.0/ https://postgrest.org/en/v7.0.0/ Semantic - https://github.com/github/semantic https://github.com/github/semantic Pandoc - https://pandoc.org/ https://pandoc.org/
T-R 6y ago
Facebook's spam filtering: https://engineering.fb.com/2015/06/26/security/fighting-spam-with-haskell/ https://engineering.fb.com/2015/06/26/security/fighting-spam...
- agentultra 6y ago
  They also occasionally contribute libraries like Haxl [0] and HsThrift [1] [0] https://hackage.haskell.org/package/haxl https://hackage.haskell.org/package/haxl [1] https://engineering.fb.com/2021/02/05/open-source/hsthrift/ https://engineering.fb.com/2021/02/05/open-source/hsthrift/
mightybyte 6y ago
Starbucks uses a system with a Haskell frontend and backend for generating their personalized offers. I have it on good authority that it's probably been responsible for more than a billion dollars in revenue lift for Starbucks.
- one-punch 6y ago
  This is new to me. I have heard of Haskell used in companies mentioned by other comments, but I am surprised, pleasantly, that Starbucks uses Haskell. Do you have a pointer (job posting, blog post, etc.) to Starbucks using Haskell? It could help me push for using Haskell by my employer, for example.
  - mightybyte 6y ago
    Starbucks themselves didn't use Haskell. They used a system built by another company that used Haskell.
centimeter 6y ago
Several large financial firms have significant Haskell codebases, plenty of random cryptocurrency startups are Haskell based, some of the Google TPU chips are/were written in Haskell/Clash, Facebook has a big Haskell codebase, Starbucks and Target use it, there are several national security/defense firms extensively using Haskell, etc. etc. Just because you don't see a bunch of blog posts like "We rewrote our <useless product> in <language du jour>!" doesn't mean it's not being used. In fact, more serious companies tend to lean less heavily on the developer social media publicity circuit.
- one-punch 6y ago
  > Starbucks and ... use it I have heard of Haskell used in companies mentioned by other comments, but I am surprised, pleasantly, that Starbucks uses Haskell. Do you have a pointer (job posting, blog post, etc.) to Starbucks using Haskell? It could help me push for using Haskell by my employer, for example.
codebje 6y ago
CircuitHub is apparently built with Haskell. It's the most polished PCB manufacturing quote system I've seen, but "significance" is relevant. (Plus I've never actually used their service, since it's not priced for hobbyist manufacture of a small number of boards).

Depends your definition of "significance" but Cardano is written in Haskell, and its main smart contract language is also Haskell. https://cardano.org/ https://cardano.org/

tome 6y ago

It might help if you define "of significance".

mumblemumble 6y ago

Pandoc comes to mind.

lalaithion 6y ago

Shellcheck - https://www.shellcheck.net/ https://www.shellcheck.net/ PostgREST - https://postgrest.org/en/v7.0.0/ https://postgrest.org/en/v7.0.0/ Semantic - https://github.com/github/semantic https://github.com/github/semantic Pandoc - https://pandoc.org/ https://pandoc.org/

T-R 6y ago

Facebook's spam filtering: https://engineering.fb.com/2015/06/26/security/fighting-spam-with-haskell/ https://engineering.fb.com/2015/06/26/security/fighting-spam...

agentultra 6y ago
They also occasionally contribute libraries like Haxl [0] and HsThrift [1] [0] https://hackage.haskell.org/package/haxl https://hackage.haskell.org/package/haxl [1] https://engineering.fb.com/2021/02/05/open-source/hsthrift/ https://engineering.fb.com/2021/02/05/open-source/hsthrift/

mightybyte 6y ago

Starbucks uses a system with a Haskell frontend and backend for generating their personalized offers. I have it on good authority that it's probably been responsible for more than a billion dollars in revenue lift for Starbucks.

one-punch 6y ago
This is new to me. I have heard of Haskell used in companies mentioned by other comments, but I am surprised, pleasantly, that Starbucks uses Haskell. Do you have a pointer (job posting, blog post, etc.) to Starbucks using Haskell? It could help me push for using Haskell by my employer, for example.
- mightybyte 6y ago
  Starbucks themselves didn't use Haskell. They used a system built by another company that used Haskell.

centimeter 6y ago

Several large financial firms have significant Haskell codebases, plenty of random cryptocurrency startups are Haskell based, some of the Google TPU chips are/were written in Haskell/Clash, Facebook has a big Haskell codebase, Starbucks and Target use it, there are several national security/defense firms extensively using Haskell, etc. etc. Just because you don't see a bunch of blog posts like "We rewrote our <useless product> in <language du jour>!" doesn't mean it's not being used. In fact, more serious companies tend to lean less heavily on the developer social media publicity circuit.

one-punch 6y ago
> Starbucks and ... use it I have heard of Haskell used in companies mentioned by other comments, but I am surprised, pleasantly, that Starbucks uses Haskell. Do you have a pointer (job posting, blog post, etc.) to Starbucks using Haskell? It could help me push for using Haskell by my employer, for example.

codebje 6y ago

CircuitHub is apparently built with Haskell. It's the most polished PCB manufacturing quote system I've seen, but "significance" is relevant. (Plus I've never actually used their service, since it's not priced for hobbyist manufacture of a small number of boards).