datahike VS logseq

Datahike [0] provides similar functionality to datomic and is open source. It lacks some features however that Datomic does have [1].

[0]: https://github.com/replikativ/datahike

You can also consider other durable Datalog options like datahike or datalevin which can work either as lib (SQLite style) or in a client-server setup; if you want to play with bi-temporality XTDB is a rock solid option with very good support and documentation.

Check https://github.com/replikativ/datahike

Oh really interesting. I didn't know about that. I was actually going threw the old Mendat code base and was considering using that.

I would really like a pure Rust version of Datomic for embed use cases.

There is all also Datahike, that is going in that direction too. It is maintained and actively developed.

https://github.com/replikativ/datahike

Having an Datomic like store backed by something like this.

https://github.com/replikativ/datahike

Is an Open Source variant of Datomic.

Lambdaforge wants to eventually have this work with CRDTs.

Using the Matrix ecosystem for this is quite interesting as it solves many problems for you already.

Unlike some other commenters, I agree that graph models are usually a better fit for most data than relational models. There's been some interesting work in recent years developing this idea: in the Clojure world there's Datomic, XTDB, and a host of competitors, all of which build on work from Semantic Web/SPARQL/triplestores and logic programming. Some are even intended to be used as primary datastores: they support some amount of schema and constraints, have well-defined consistency and ACID guarantees, etc. This makes them unlike graph databases like Neo4J and others, which fill an architectural role more like Elasticsearch as a read-optimization tool. Here's an interesting talk making a case for triple-based databases.

Have a look at https://github.com/replikativ/datahike and https://github.com/replikativ/datahike-postgres

There is now a datahike linux native image preview available: https://github.com/replikativ/datahike/releases/tag/preview

And implemented as a full-on datastore queried via Datalog: https://github.com/replikativ/datahike

Logseq support via our Logseq Plugin

Sorry, but _what exactly_ «it seems to do» from your point of view?

My «second brain» now is almost 300Mb of text, pictures, sound files, PDF and other stuff. As I already mentioned, it contains tables, mathematical formulae, sheet music, cross-references, code samples, UML diagrams and graphs in Graphviz format. It is versioned, indexed by local search engine, analyzed by AI assistant and shared between many computers and mobile devices. And (last but not least) it works: it allows me to solve my tasks way more faster than with the assistant of external, non-personalized tools (like ChatGPT, StackExchange or Google).

I know no tools for all this tasks except org-mode. Well, maybe Evernote in the 2010-s was something similar — but with less features, with more bugs and with worse interface.

Personal note-taking _is_ a complex task per se (well, at least for someone like typical HN visitor). I've seen many note-taking tools, that were ridiculously featureless, stupid and inconvenient because they were _not_ complex enough.

> Sure if one wants to do emacs-gardening it is fine.

1)You can use org-mode outside Emacs. See for example Logseq (https://logseq.com/), organice (https://organice.200ok.ch/) or EasyOrg.

2)Org-mode works in Emacs out of the box, you don't need any «emacs-gardening» to use org-mode.

3)The term «Emacs-gardening» itself sound a bit like hate-speech for me. The complexity of Emacs customization is overrated, mostly due to opinions of people who never used Emacs or used it in the previous millennium.

Obsidian is great.

For those looking for an open source alternative (or don't want to pay the Obsidian fees for professional usage) check out Logseq: https://logseq.com/

For an opensource alternative to Obsidian checkout Logseq (1). I spent a while thinking obsidian was opensource out of my own ignorance and was disappointed when I learned it was not.

1: https://logseq.com/

I use logseq to keep journal of my daily work.

While Emacs and Org mode can certainly be used for this (and, when they can't, you can always inject little python/js scripts in your emacs config to take care of specific things), I'd also recommend you take a look at Logseq.