Notes.

The last few weeks/months have been pretty busy for me. I’ve started a new job, released some libraries and I’m going to the USA for work in a few weeks!

I’ll be in San Francisco from 5th-11th May, and in New York 12th-17th May. If you’re going to be in either of those places at the same time and would like to meet up, reply to this email and we can try and arrange a time.

I’m looking to hire a part-time contractor to do some work on Deps. If you’re a reader of this newsletter, you’re clearly have fine taste and are very talented, so please take a look if you’re in the market for flexible, part-time Clojure work.

Lastly, a reader was kind enough to send me an Easter card a few weeks ago. I couldn’t make out their name on the postcard, but thanks to the sender!

-main

• Dragan Djuric has been on a streak with writing his Deep Learning in Clojure from Scratch, part 0, part 1, part 2, and so many more parts that you should just go to part 0 for the index of all of the things he’s written.
• What’s the point of Clojure? - a business approach from Magnet.
• @scicloj has an online gathering very soon (< 24 hours from now) talking about Clojure and data science.
• JUXT have a teaser page up for CRUX, their new bitemporal graph database. The bitemporal part is key here, it lets you separate transaction time (when you recorded it) from domain time (when the event happened). Often when you start an application these are the same thing. However, as you merge data from more sources, or backfill prior data, only having a transaction time can be cumbersome.
• Replete is now available on iOS and Android.
• clj-kondo is a new linter from Michiel Borkent that sparks joy. One especially neat thing is the IntelliJ integration, I think this is the first linter I’ve seen that has integration with IntelliJ.

Audio

I realised I hadn’t mentioned any of my podcast guests for the last few newsletters, so here they all are at once:

• Clojure at Apple with David Taylor
• Monorepos and monologues with Alex Engelberg
• Editing and Formatting Clojure code with Shaun Lebron
• Testing Clojure and ClojureScript with Arne Brasseur
• Clojure MXNet with Carin Meier
• Looking at Clojure with a business mindset with Jonathan Boston
• Cursive IDE with Colin Fleming

Libraries & Books.

• I put out re-frame-10x with some new features, especially subscription pinning and searching thanks to Shen Tian.
• tilakone is an FSM library from the fine folks at Metosin.

People are worried about Types. ?

• I released defn-spec, a library for defining fdef’s inline with your Clojure functions, and I guess this kinda qualifies as me worrying about types too. I also wrote a bit about my motivations for building the library.
• How to parse custom defn macros with clojure.spec
• Schema and select in spec-alpha2

Foundations.

• Depending on your OpenJDK distribution, Java’s SecureRandom may use /dev/random (blocking) instead of /dev/urandom (non-blocking, and the correct device to use).

Tools.

• Chlorine is a Clojure plugin for Atom
• Thomas Heller on What shadow-cljs is and isn’t. This doubles as a good overview on how the ClojureScript compiler works.
• Thomas Heller again on Code-Splitting ClojureScript
• Thomas Heller once more for the trifecta, this time with his Patreon
• How to run Clojure code quality tools with Sonarqube
• The Emacs Package Developer’s Handbook
• nREPL 0.6 is out

Recent Developments.

I’ve been enjoying all of Alex’s Inside Clojure post’s, but espeically interesting was the one on spec/select. I’m also very excited to see that closed schemas may be on the cards!

Misc.

I really enjoyed this post on building a robust log collection pipeline for Google Fiber’s monitoring of client router’s (not their content though) at customer’s houses.

---

I’m Daniel Compton. I maintain public Maven repositories at Clojars, private ones at Deps, and help fund OSS Clojure projects (along with tons of generous members like Pitch, JUXT, Metosin, Adgoji, and Funding Circle) at Clojurists Together. If you’ve enjoyed reading this, tell your friends to sign up at therepl.net, or post a link in your company chatroom. If you’ve seen (or published) a blog post, library, or anything else Clojure/JVM related please reply to this to let me know about it.

If you’d like to support the work that I’m doing, consider signing up for a trial of Deps, a private, hosted, Maven Repository service that I run.

Thanks!