Maybe you want to hire me sometime later

Here's my CV, but I work for Serokell at the moment (and we're writing a cryptocurrency in Haskell). Most likely, I won't agree to work for you right now. But hey, you can still write me and maybe in a year or so I'll be yours if you:

• are awesomer
• aren't awesomer but pay substantially more
• or offer relocation to some nice country

Shitty Haskell consultancy

Just for $100/mo I will hang out in your Slack and answer questions like “why doesn't this compile”, “suggest me a library for X”, “can I rewrite this code using lenses?” and so on. (Years of reading Reddit lead to approximate knowledge of many things, though I've been kinda ignoring databases and webdev. Well, it's not called “shitty consultancy” for nothing.)

Look at my Telegram channel

Here it is.

Haskell

I've written some libraries – you can see the list at aelve.com.

I also started the /r/haskelltil subreddit (for Haskell tips and tricks and code samples and oddities and curiosities and idioms and interesting facts and everything that is short enough that you'd be ashamed to submit it to /r/haskell or write about it at your blog). It didn't catch on but some content there is still useful.

Finally, right now I'm busy working on Aelve Guide, a wiki-like guide to Haskell ecosystem and community.

lens over tea

A series of articles (called “lens over tea”) about lens and its implementation.

• part 1 – lenses 101, traversals 101, a bit of implementation details (also lens operators, functor composition, Const, Identity, difference lists, monoids of endomorphisms under composition, default signatures for class methods, equality constraints, and irrefutable patterns).

• part 2 – composition, laws, getters/actions/setters (also history of lenses, categories, the way to write lenses which would compose “normally”, some links to Reader/Writer/State learning materials, Void).

• part 3 – folds (also Foldable, Apply, a nice trick for combining folds, and Fold1).

• part 4 – isomorphisms, some profunctors, lens families (also Forget, Tagged, Proxy, a bit about pure profunctor lenses, existential types, algebra of types, and a cat video).

• part 5 – prisms (also a recap of isomorphisms with diagrams, a bit about affine traversals, Pointed, and coerce).

• part 6 – Template Haskell, aka “write your own makeLenses”

It's a work in progress; the future parts will mention:

• indexed things
• Bazaar/Magma/Molten/Mafic, traversal stuff like partsOf, taking
• fusing and confusing
• benchmarks (view _1 vs fst? how much does fusing help? etc)
• vertical composition, link
• ala, AlongsideLeft
• upon, link
• pure profunctor lenses and traversals, link 1, link 2, link 3, link 4, symmetric lenses ((g a -> f b) -> g s -> f t), link
• Control.Lens.Plated, Control.Lens.Level, Control.Lens.Zoom

Other stuff

• Aeson: the tutorial
• 10 questions about Haskell: a shitpost
• Making a CTF task in Haskell
• Some common and annoying mistakes in Haddocks

Stuff that is sort of related to psychology

• Unconditional empathy
• The YX problem

Stuff that is sort of related to linguistics

• Why you don't want “irregardless” to be a word
• Polysemy (i.e. overloading) in programming

Racket

Several years ago I've been learning Racket and making notes (which then became somewhat popular):

• Introduction. First three days, no prior knowledge, getting a feel for the syntax... You get the idea.

• Macros, Macros and a Bit of Modules. Another three days. Mostly macros, as you could've guessed.

I'm not learning Racket anymore, but I might start again in the future.

Stuff I did

• This site. Yes, it runs on a couple of shell scripts, but I thought I'd explain them anyway.