Merge pull request #242 from haskellfoundation/podcast_21

podcast episode 21

Author: nikivazou

podcast/21/index.markdown

@@ -0,0 +1,9 @@
+---
+title: Andrey Mokhov.
+episode: 21
+buzzsproutId: 12240448
+recorded: 2022-12-08
+published: 2023-02-13
+---
+In this episode Matthías Páll and Andres Löh  talk with Andrey Mokhov. 
+Andrey is best known for his work on the Hadrian build system and today he talks about algebraic graphs, selective functors, and the  difference between OCaml and Haskell. 

podcast/21/links.markdown

@@ -0,0 +1,8 @@
+* [Andrey's website](https://blogs.ncl.ac.uk/andreymokhov/)
+* [Andrey's twitter](https://twitter.com/andreymokhov)
+* [Algebraic Graphs](https://github.com/snowleopard/alga)
+* [Hadrian](https://gitlab.haskell.org/ghc/ghc/-/blob/master/hadrian/README.md)
+* [Build Systems à la Carte](https://www.cambridge.org/core/journals/journal-of-functional-programming/article/build-systems-a-la-carte-theory-and-practice/097CE52C750E69BD16B78C318754C7A4)
+* [Selective Functors](https://github.com/snowleopard/selective)
+* [Dune](https://github.com/ocaml/dune)
+* [United Monoids](https://arxiv.org/ftp/arxiv/papers/2202/2202.09230.pdf)