We're starting small and rolling out gradually to beta users. Long term, all sorts of things will be supported in the pay tier.

This one is a bit like Heroku++ for Clojure. We also have a prototype val.town for Clojure that will follow :D

Yes, it's used by many companies in production. There's a partial list here:

https://www.datomic.com/customers.html

Not a good look when four out of the six companies behind the "customer stories" do not exist anymore (or at least their website is dead ...)

to be honest the testimonials are terrible.

> “Datomic added to DynamoDB was the only option that didn’t force us to sacrifice features or add the expense of developer time. Without it, we would have had to push back a lot more, as the features would have been too difficult.”

(https://www.datomic.com/the-brigades-story.html)

like, what? effectively useless information.

some of the other testimonials mention keeping revision history, which is neat, but why Datomic vs. others? it's pretty easy to keep revision history with other databases too.

It's not simply revision history, it's a complete record of everything with time, without re-architecting your data or app. IIRC datomic structures your data so that all transactions and state have a time dimension so you can go forward or back in time trivially (no special query, no temporal sql, etc.)

What happens when you have a legal obligation to delete or anonymise data for some reason?

There's https://docs.datomic.com/pro/reference/excision.html - but like in other data models you also might choose to not store sensitive infromation like PII in cleartext in the main DB at all. At least in earlier versions excision wasn't supported in the Datomic Cloud version.

Excision still isn't supported for cloud, it is / was on their plan but there was never any movement in that direction.

I wonder if this is related to lack of guarantees about actual data erasure on delete in the backing storage. A lot of users probably don't take this into account when building on top of cloud storage servies.

. Sadly, the JVM unwinds the stack before returning the exception, which makes doing the right thing very hard.

I'm probably missing some subtlety. I'd think you could have some "debug mode" layer where the Clojure runtime catches exceptions. Basically wrapping every exception in Clojure with a try/catch, and doing a try/catch on every interop call

It's not ideal having two different modes (like a C++ Release/Debug) - but it'd be better than the current situation

Maybe this is what CIDER's debug macro is actually doing - I always forget to play around with it :) I'll need to try it in the future.

btw, thanks for your work. I really appreciate the stuff you've shared and it's nice to know someone else also uses thing/geom :))

Has the highly decoupled "mini-library" thing/geom architecture influenced Clerk? I'm been meaning to try it out - but notebooks always feel like they come with some ecosystem lock-in (esp if it's a company trying to make money - ie. Nextjournal). It'd guess it's part of why everyone reverts back to plain text. With thing/geom I just pick and choose and tweak the pieces I need - and then swap them out when I want to change to something else entirely (mostly for building GUI applications in CLJFX)

Definitely not!

Sorry you hated the formatting. The transcript is meant to be an assistive technology for the video, and a place to put extra notes I couldn't fit into the time I had. Ideally, the transcript would scroll as the video advances and the timestamps would move the playhead to that part of the talk, but I haven't time this week to do as much hacking on that as I'd like.

Absolutely no issue! I've only just come across your work and am astounded at both its breadth and depth.

I thought perhaps the page wasn't owned by you, and that someone had ripped it from subtitles or something similar.

The link for the article looks to have changed; before it was to a website that had text next to timestamps.

The reference for this is the Brad Myers paper referenced in this tweet:

https://twitter.com/jackrusher/status/1553392739986952194

(The paper is very good.)

Hey, thanks!

I downloaded the automatic transcript from the YouTube video and wrote some code to reformat it in this way to make referencing the position in the video easier. I should probably have linked each time code to open the video at that point, but I'm a bit time constrained this week.

Yep, I've done this too. I had a video with a live youtube transcript for a talk, but in addition I had a manually written transcript from one of the attendees. She wasn't trying to make it word-for-word perfect, but it was reasonably close and obviously had better formatting.

The automatic transcript was fairly poor quality but had fairly precise timestamps. The manual transcript lacked timestamps but was high quality. So I used an approximate matching algorithm to combine them and produce a clickable version of the manual transcript where every group of words was a direct link to that portion of the youtube video. It all worked out surprisingly well. (The other piece was that I hand-inserted annotations to produce an index of various topics and concepts that I thought were significant.)

I don't know how common of a situation this is, since it requires having a high-fidelity human-created transcript. I could clean up the tools and release them, I suppose. I did this for a birthday present.

(I don't have a demo because it's a private video, sadly, and I have rights to neither the video nor the manual transcript.)

That's exactly it, yeah. It looks like a hot reload on save, but it does only the minimum calculation required.

I tried to get more people to pay attention to what you were doing, and still miss you in the Clojure community.

We built a dataflow system for Complex Event Processing (CEP) at one of my previous startups. It included both a visual programming GUI and a non-hideous programming language called SPLASH that allowed one to code nodes of the dataflow graph. The product is now known as the SAP Sybase Event Stream Processor, and this page has an example of SPLASH: http://www.sybase.com/products/financialservicessolutions/co...

(Jon Riecke <http://scholar.google.com/citations?user=lSdHdpUAAAAJ&hl...; did most of the work on the language.)