New blog post! „No, really, you can’t branch #Datomic from the past (and what you can do instead)”
https://blog.danieljanus.pl/2025/04/22/datomic-forking-the-past/
blog.danieljanus.plNo, really, you can’t branch Datomic from the past
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Introducing Hazel: A JavaScript Library for Frontend Data Management Inspired by Datomic
Hazel is a groundbreaking proof of concept that adapts Datomic principles for the frontend, enabling efficient data handling directly in the browser. This innovative approach promises to enhance produ...
Myke 
Is it possible to make a re-frame #localfirst app, syncing #datomic on the back-end and #datascript on the front-end? How would you do that?
Me finally deciding I should try #datomic, going all the way through helloworld only to realize that the "datomic local" flavor doesn’t do stored functions.
(╯°□°)╯︵ ┻━┻
So to even try those I'd have to spin up a local postgres, deploy datomic transactor, and figure the pg schema.
#xtdb looks like fun again.
I was sick for the last ~ 10 days. Done almost nothing. 
Feeling kinda recovered today. 
But had some shorts moments of clarity to play with #xtdb (#clojure) https://xtdb.com
I saw it ~ year ago when it was v1. Then they've released v2 with some breaking changes.
Summary: cool idea, but still raw as f.
The last drop for me was: they have an option to add metadata to the transaction but it's hidden from the public api and the PR is there for ~ 2 years
Switching to #datomic
XTDBXTDB — immutable SQL database for data compliance
A little attempt at "programmer's humor", I hope you may enjoy it :-p #clojure #datomic https://news.ycombinator.com/item?id=41645499
news.ycombinator.com“Simple” comes from simplex (Latin for “not braided”), while “complex” means “br... | Hacker News
soooo close to getting my evil #datomic on #sqlite+#litestream idea running and I’m now running into an undebuggable fly.io error 
Jepsen (a small consultancy focused on #distributed #systems safety) released their analysis of #Datomic safety and correctness - and concluded:
We found no behavior which violated Datomic’s core safety claims ... Indeed, we believe Datomic’s inter-transaction safety properties are stronger than promised. https://jepsen.io/analyses/datomic-pro-1.0.7075
jepsen.ioJepsen: Datomic Pro 1.0.7075
Continued thread
For those of you who are Datomic users, and database users in general, I'd love to hear what you think about #Datomic's concurrent intra-transaction semantics. Do you struggle with traditional databases that let transactions observe intermediate state from earlier in the same transaction? Have you accidentally written transaction functions that assumed serial semantics? How has Datomic's model changed the way you design transactions?
As it is getting spring over here in the northern hemisphere, time to get the garden ready. https://application.garden I mean.
I've been moaning for something like this for years: just push a #Clojure app via git to application.garden and it will run it for you within seconds, complete with persistent storage, ability to use #Datomic and a on a domain of your choosing. No Docker, no <insert fancy pants tech stack no one understands here>.
Oh, and you can connect to the running app with your REPL
We, Sharetribe, are launching tomorrow on Product Hunt! 
Sharetribe is a no-code marketplace builder fully extendable with code.
And Sharetribe is built with your favorite tech stack, #clojure, #clojurescript, and #datomic! 
I'd love it if you could follow our page and support us at https://www.producthunt.com/products/sharetribe !
Read more about us at https://www.sharetribe.com/
Product Hunt Sharetribe - Product Information, Latest Updates, and Reviews 2024 | Product HuntSharetribe is the fastest no-code marketplace builder that extends infinitely with code.
Cut 90% of the time and cost to build a marketplace, without trading off customizability and scalability.
- Launch your marketplace in one day without coding.
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- Grow your business to any size. We'll handle the scaling.
Trusted by 1000+ marketplace founders worldwide, in more than 50 countries.
This is a really well done tutorial on datalog, https://www.learndatalogtoday.org #clojure #datalog #datomic
www.learndatalogtoday.orgLearn Datalog Today!
Replied in thread
@haskman now if we could just replace Postgres with a functional database such as Datomic. Actually that's the only one I know of and sadly because it was closed source and commercially licensed very few other people have heard of it or used it. But I love the concept because fundamentally data isn't mutable, that's just an aberation of our desire to snapshot a view ignoring time.
TIL: #Datomic has an :xform option for pull attributes
https://docs.datomic.com/pro/query/pull.html#xform
(via @mkvlr)
docs.datomic.comDatomic Pull | Datomic
Nubank/Cognitect released an embeddable version of Datomic. What's remarkable is that they are releasing the binaries as Apache License 2.0, while the project itself is still closed source.
I'm guessing they checked it with their legal folks, but seems like a very atypical use of an open source license. Anyone know of any precedent?
https://blog.datomic.com/2023/08/datomic-local-is-released.html
blog.datomic.comDatomic - Datomic Local is Released
If you’re interested in running Datomic Pro locally or on Fly.io, you might be interested in https://github.com/carrete/datopro-mic. It’s still early days. Please let me know if you encounter any problems #clojure #datomic
GitHubGitHub - carrete/datopro-mic: This is **NOT** in any way associated with, endorsed by, or affiliated with Cognitect.This is **NOT** in any way associated with, endorsed by, or affiliated with Cognitect. - carrete/datopro-mic