arohner

Entrepreneur. Founder, CTO @griffinbank. Founder, ex-CTO @circleci. Clojure contributor.

[arohner @arohner]

@samelit140909 No, but it helps. Test caching is great because it reduces the cost of having more tests in your repo.

[arohner @arohner]

@pappapez @Venantius Yes

[arohner @arohner]

That was @Venantius and me. We are now a full UK bank!

[Patrick McKenzie @patio11]

Internet fist bump to the entrepreneur who, in April 2017, asked me how to go about doing an extremely ambitious company and who has sent 2 years worth of updates titled:

$COMPANY: $MONTH $YEAR

The last one: "We did it! Finally have $NUMBER in the bank!"

(Now the work begins.)

[JUXT @juxtpro]

🎁 Day 1⃣5⃣ — JUXT Content Advent Calendar 🗓️🎄

🥇🏆 Our No. 1 post in 2023 was the Clojure In interview we did with @griffinbank's CTO & Co-founder @arohner — where he shared how they’ve built a fully-regulated, API-driven bank, using Clojure 💡➡️
https://t.co/6nvj8QKe7D

[arohner @arohner]

@pappapez We are hiring perm (not contract) at Griffin: https://t.co/UE4gEc6opS

[arohner @arohner]

"If it doesn't have tests, it's broken" => "if it doesn't have performance NFRs, it's slow"

[arohner @arohner]

@dustingetz Proton appears to be significantly more secure, because it's e2e encrypted, and fastmail is not. I didn't see the value in leaving google for another company that can spy on me.

[arohner @arohner]

@nhooey @jamesd3142 They aren't inaccessible features, they're extra logic in CDK that isn't included in an API. "If you're configuring a new EKS cluster, also do X and Y. If config flag Z is set, also do Z'"

[arohner @arohner]

@nhooey @jamesd3142 That being said, I'd like to resurrect it, because CDK has not been the best experience. (Node, slow deploys)

[arohner @arohner]

@nhooey @jamesd3142 It stalled out for business reasons. We had to write code for each new API we wanted to support. Also AWS Cloudformation and CDK include lots of extra functionality that you don't get using the API directly. See e.g. EKS spin up.

[arohner @arohner]

@Venantius @jitl @ztownsend @griffinbank @ctdean @jimbru @treasuryprime I haven't written an FDB PR yet, but I will this year if I ever some free time (lol).

[arohner @arohner]

@Venantius @jitl @ztownsend @griffinbank @ctdean @jimbru @treasuryprime FDB is awesome. It's by far the most correct database you can use. However, it's best used for building database tools on top of it. Don't expect batteries-included.

[Griffin @griffinbank]

✨ We’re super excited to announce that we are now a UK bank!! 🏦 .

Read all about it here: https://t.co/cFm6U8vT36

#thebankyoucanbuildon #bank #Griffin

[arohner @arohner]

@turnerjasonuk Lack of time. Startup + small children leaves no time for hacking.

[arohner @arohner]

The choice is never "build vs. buy". It's "build 120%", or "buy 80% and build 60%"

[arohner @arohner]

Hot take: Databases, including Datomic, complect storage and queries, and should be unbundled.

[arohner @arohner]

@atmarc FYI I'm also @arohner on Clojurians Slack. Feel free to DM there if you have any more questions.

[arohner @arohner]

@atmarc If not using bazel, I wouldn't recommend AOT in tests for the reasons you describe. The speedup is also not as big because only one JVM startup. In our repo, it would be 1:30 per build. Nice, but not game-changing.