diff --git a/content/profiles/index.md b/content/profiles/index.md
index 9883e95..1b00903 100644
--- a/content/profiles/index.md
+++ b/content/profiles/index.md
@@ -2,7 +2,7 @@
 title = "My online profiles and different communication channels"
 description = "On this page I list a selection of different online accounts owned by me and communication services that can be used to talk with me."
 date = "2021-08-17 10:21:34+02:00"
-updated = "2023-03-19T18:58:11+01:00"
+updated = "2024-02-20T14:24:15+01:00"
 +++
 
 I have recently heard of the practice of listing available communication channels and online profiles on the internet to
@@ -12,10 +12,11 @@ but hopefully even a list with only the less sensitive profiles and contact info
 
 The following list is probably not complete and will change over time.
 
-| Service/Protocol   | Hyperlink                                          | Notes                                                                                                                                        |
-| ------------------ | -------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- |
-| E-Mail             | [contact@jotoho.de](mailto:contact@jotoho.de)      | [OpenPGP keys here](https://downloads.jotoho.de/openpgp/) and [via WKD](https://datatracker.ietf.org/doc/draft-koch-openpgp-webkey-service/) |
-| Mastodon/Fediverse | [@jotoho@ruhr.social](https://ruhr.social/@jotoho) |                                                                                                                                              |
-| GitLab             | [@jotoho](https://gitlab.com/jotoho)               | Preferred Git hosting platform                                                                                                               |
-| GitHub             | [@jotoho](https://github.com/jotoho)               |                                                                                                                                              |
-| Threema            | [8WEESJ8K](https://threema.id/8WEESJ8K)            | <details><summary>QR-Code containing Threema-ID</summary><img src="threema-scanid-8weesj8k.svg" alt="Scannable QR-Code" width="1000px" height="1000px" loading="lazy" class="black-white-svg" /></details>                         |
+| Service/Protocol   | Hyperlink                                                  | Notes                                                                                                                                                                                                      |
+| ------------------ | ---------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| E-Mail             | [contact@jotoho.de](mailto:contact@jotoho.de)              | [OpenPGP keys here](https://downloads.jotoho.de/openpgp/) and [via WKD](https://datatracker.ietf.org/doc/draft-koch-openpgp-webkey-service/)                                                               |
+| Mastodon/Fediverse | [@jotoho@ruhr.social](https://ruhr.social/@jotoho)         |                                                                                                                                                                                                            |
+| GitLab             | [@jotoho](https://gitlab.com/jotoho)                       | Preferred Git hosting platform                                                                                                                                                                             |
+| GitHub             | [@jotoho](https://github.com/jotoho)                       |                                                                                                                                                                                                            |
+| Threema            | [8WEESJ8K](https://threema.id/8WEESJ8K)                    | <details><summary>QR-Code containing Threema-ID</summary><img src="threema-scanid-8weesj8k.svg" alt="Scannable QR-Code" width="1000px" height="1000px" loading="lazy" class="black-white-svg" /></details> |
+| Matrix             | [@jotoho:tchncs.de](https://matrix.to/#/@jotoho:tchncs.de) |                                                                                                                                                                                                            |