Kodsnack 573 - This is not a toy project, with Leandro Ostera and Emil Privér

Fredrik is joined by Emil Privér and Leandro Ostera for a discussion of the OCaml ecosystem, and making it Saas-ready by building Riot.

First of all: OCaml. What is the thing with the language, and how you might get into it coming from other languages? The OCaml community is nice, interested in getting new people in, and pragmatic. And it has a nice mix of research and industry as well.

Then, Leandro tells us about Riot - an experiment in bringing everything good about the Erlang and Elixir ecosystems into OCaml. The goal? Make OCaml saas-ready. Riot is not 1.0 just yet, but an impressive amount has been built in just five(!) months.

Emil moves the discussion over to the mindset of shipping, and of finding and understanding good ideas in other places and picking them up rather than reinventing the wheel. Leandro highly recommends reading the code of other projects. Read and understand the code and solutions others have written, re-use good ideas and don’t reinvent the wheel more often than you really have to.

Last, but by no means least, shoutouts to some of the great people building the OCaml community, and a bit about Emil’s project DBCaml.

Thank you Cloudnet for sponsoring our VPS!

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Links

Emil Leo Leo on Twitch Previous Kodsnack appearances by Emil Riot Sinatra Backbone.js Ember.js Angularjs React Erlang Tarides • - where Leandro currently works

OCaml Robin Milner • - designer of ML

Caml Javacaml F# Imperative programming Object-oriented programming Pure functions • and side effects Monads The OCaml compiler Reason • - the language built by Jordan Walke, the creator of React

Standard ML React was prototyped in Standard ML Melange • - OCaml compiler backend producing Javascript

OCaml by example The OCaml Discord The Reason Discord Rescript Jane street High-frequency trading The Dune build system Erlang process trees Caramel • - earlier experiment of Leandro’s

Louis Pilfold Gleam Algebraic effects Continuations Pool • - Emil’s project

Gluon Bytestring Atacama • - connection pool inspired by Thousand island Nomad • - inspired by Bandit Trail • - middleware inspired by Plug Sidewinder • - Livewire • -like

Saas - software as a service DBCaml Johan Öbrink Ecto Mint tea • - inspired by Bubble tea Autobahn|Testsuite • - test suite for specification compliance

• Serde - Rust • and OCaml • serialization framework

S-expressions TOML Dillon Mulroy Metame • - community kindness pillar

welltypedwitch Sabine • maintains ocaml.org

OCaml playground OCaml cookbook • - in beta, sort of

teej_dv ocaml.org Pool party Drizzle SQLX SQL Join types • (left, inner, and so on)

dbca.ml internet.bs The Caravan Essentials of compilation Reading rainbow

Titles

• Few people can have a massive impact

• Impact has been an important thing for me

• It’s a language out there

• A very long lineage of thinking about programming languages

• Programs that never fail

• The functional version of Rust

• Melange is amazing

• This is not a toy project

• Yes, constraints!

• Wonders in community growth

• Arrow pointing toward growth

• Programs that don’t crash

• A very different schoold of reliability

• Invert the arrow

• Very easy on the whiteboard

• Multicore for free

• An entire stack from scratch

• Built for the builders

• A massive tree of things

• Make OCaml saas-ready

• Leo is a shipper

• Standing on the shoulders of many, many giants

• Learn from other people

• I exude OCaml these days

• Sitting down and building against the spec

• You just give it something

• Your own inner join

• We build everything in public

• The gospel of the dunes

Release date

Lydbog: 12. marts 2024