JEJeff_Brown·Dec 21, 2019
There's a similar open-source tool with an Emacs front end called Semantic Synchrony.
https://github.com/synchrony/smsn/wiki/What-you-need-to-know...
In Roam – a graph-based personal knowledgebasesynchrony
smsn
Java2017–2021
synchrony / smsn
smsn
Semantic Synchrony. An experiment in cognitive and sensory augmentation.
4Distinct people
16Mentions
1Explicit recommenders
187GitHub stars
What to know before exploring
What it is
Semantic Synchrony. An experiment in cognitive and sensory augmentation.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
Anybody who thinks reading and writing is powerful, and anybody who thinks sharing is powerful, ought to be excited about knowledge graphs. Knowledge graphs are powerful --…
Jeff_Brown used a recommendation phrase. 2 indexed comments match. This is a phrase match, not a verdict.
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Also in these discussions
- jeffreybenjaminbrown/digraphs-with-text · linked in 2 of the same discussions
Mentioned in the same Hacker News threads. That is not proof they are substitutes.
This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 8:03:49 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year16 dated mentions
Observed mentions: 2017-11-04 19:28:44 UTC to 2021-06-17 12:46:23 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 5 | 0 | 5 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
4 sourcesI haven't really migrated from Semantic Synchrony[1] to Hode yet. But my use case is almost everything that passes through my brain -- to-do lists, tech notes, things to read, people, places, jobs, companies, economics, artists, music theory, comedic theory, information theory, nutrition, love ...
[1] https://github.com/synchrony/smsn/
In Digital Tools I Wish ExistedIf you ever feel constrained by the tree data structure, you might like Semantic Synchrony, which hosts a graph, editable from Emacs:
https://github.com/synchrony/smsn
(I'm a minor author of the project. It's kind of in a state of disrepair; Josh and I are both working on replacements for it. But it works!)
In I find journaling indispensableThe "knowledge graph" and "personal knowledge base" community is working on it! Although in a lot of little projects; nothing unified that I know of. Here's a project I worked on for a while, which lets you maintain a Neo4j database via an Emacs frontend:
https://github.com/synchrony/smsn
Here's something I'm working on now -- extremely expressive, but no app yet:
https://github.com/JeffreyBenjaminBrown/digraphs-with-text/b...
In Compounding Knowledge