# Matrix not available on Debian 11?
**URL:** https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719
**Category:** Support
**Created:** [September 13, 2021, 9:39am UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719 "2021-09-13T09:39:38Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@libsys](https://discuss.freedombox.org/u/libsys)
#### Post date: [September 13, 2021, 9:39am UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/1 "2021-09-13T09:39:38Z")
**Problem Description**
Matrix Synapse not available on fresh FreedomBox installation.
**Steps to Reproduce**
1. Install [FreedomBox weekly image](https://ftp.freedombox.org/pub/freedombox/pioneer/weekly/).
2. Setup, but don’t enable “Frequent Feature Updates” (backports).
3. Go to Matrix Synapse application page.
**Expected Results**
Allow me to install Matrix Synapse.
**Actual results**
See the message “This application is currently not available in your distribution.”
**Screenshot**
**Information**
- _FreedomBox version_: You are running Debian GNU/Linux 11 (bullseye) and FreedomBox version 21.8. FreedomBox is up to date.
- _Hardware_: A20 OLinuXino LIME 2 (Pioneer Edition)
- _How did you install FreedomBox?_: FreedomBox Pioneer Edition Weekly Image
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### Author:  [@Sunil](https://discuss.freedombox.org/u/Sunil)
#### Post date: [September 13, 2021, 4:53pm UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/2 "2021-09-13T16:53:45Z")
Matrix Synapse is indeed [not available](https://packages.debian.org/search?keywords=matrix-synapse) in Debian 11. I believe, this was a conscious decision by the Debian packager due the changes happening in Matrix ecosystem + Debian stable’s nature.
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### Author:  [@lifeform](https://discuss.freedombox.org/u/lifeform)
#### Post date: [September 23, 2021, 8:25pm UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/3 "2021-09-23T20:25:05Z")
However, matrix-synapse is now present in bullseye-backports, so matrix-synapse should be installable if one is on bullseye and has selected Frequent Feature Updates (i.e., backports) (System/Update page). Presumably Frequent Feature Updates will be needed to install matrix-synapse for the life of bullseye as stable.
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### Author:  [@jvalleroy](https://discuss.freedombox.org/u/jvalleroy)
#### Post date: [September 24, 2021, 7:02pm UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/4 "2021-09-24T19:02:18Z")
`/etc/apt/preferences.d/51freedombox-apps.pref` still refers to buster-backports. We will need to update it for bullseye-backports.
Issue: [matrixsynapse: Install from bullseye-backports (#2122) · Issues · FreedomBox / FreedomBox · GitLab](https://salsa.debian.org/freedombox-team/freedombox/-/issues/2122)
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### Author:  [@lifeform](https://discuss.freedombox.org/u/lifeform)
#### Post date: [September 24, 2021, 7:16pm UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/5 "2021-09-24T19:16:53Z")
I forgot about apt preferences and I see matrix-synapse pinned to buster-backports in 51freedombox-apps.pref, but I somehow ended up with v1.42 from bullseye-backports when I went through auto-update from buster to bullseye:
matrix-synapse/bullseye-backports,now 1.42.0-1~bpo11+1 all [installed]
---
### Author:  [@jvalleroy](https://discuss.freedombox.org/u/jvalleroy)
#### Post date: [September 25, 2021, 1:19pm UTC](https://discuss.freedombox.org/t/matrix-not-available-on-debian-11/1719/6 "2021-09-25T13:19:28Z")
Yeah, this works because there is no matrix-synapse in bullseye itself, so it will pick the package from bullseye-backports, even without the preferences file updated.