# Development

**URL:** https://discourse.mopidy.com/c/dev/10.md

[Latest](https://discourse.mopidy.com/latest.md) · [Categories](https://discourse.mopidy.com/categories.md)

---

## [About the Development category](https://discourse.mopidy.com/t/about-the-development-category/6196)

<div class="topic-metadata">

**Author:** [@jodal](https://discourse.mopidy.com/u/jodal)\
**Replies:** 0\
**Last updated:** [February 20, 2026, 9:10am UTC](https://discourse.mopidy.com/t/about-the-development-category/6196 "2026-02-20T09:10:59Z")

</div>

Discussions related to the development of Mopidy and extensions. Usage should be discussed in Help and support.

---

## [Test Gstreamer for a PR](https://discourse.mopidy.com/t/test-gstreamer-for-a-pr/6320)

<div class="topic-metadata">

**Author:** [@Erik\_Bongers](https://discourse.mopidy.com/u/Erik_Bongers)\
**Replies:** 1\
**Last updated:** [August 2, 2026, 3:04pm UTC](https://discourse.mopidy.com/t/test-gstreamer-for-a-pr/6320 "2026-08-02T15:04:08Z")

</div>

I’ve made a draft PR for this issue. I have some general questions, that I’d rather ask here than polute the PR chat with it. It’s stuck on testing, which I’d love to help with, now I that I finally have 2 setups (in W…

---

## [Typo in documentation](https://discourse.mopidy.com/t/typo-in-documentation/6319)

<div class="topic-metadata">

**Author:** [@Erik\_Bongers](https://discourse.mopidy.com/u/Erik_Bongers)\
**Replies:** 1\
**Last updated:** [July 27, 2026, 8:39pm UTC](https://discourse.mopidy.com/t/typo-in-documentation/6319 "2026-07-27T20:39:11Z")

</div>

Not sure where to report issues with the documentation, but on this page it says to register an extension command with the get\_commands method. But it appears this method is still called get\_command. Although…it might no…

---

## [Chapters / cue points for long-form tracks (Audiobooks with chapters, multi track performances, podcasts with sections)?](https://discourse.mopidy.com/t/chapters-cue-points-for-long-form-tracks-audiobooks-with-chapters-multi-track-performances-podcasts-with-sections/6289)

<div class="topic-metadata">

**Author:** [@David\_J\_4\_Tech](https://discourse.mopidy.com/u/David_J_4_Tech)\
**Replies:** 1\
**Last updated:** [June 22, 2026, 11:55am UTC](https://discourse.mopidy.com/t/chapters-cue-points-for-long-form-tracks-audiobooks-with-chapters-multi-track-performances-podcasts-with-sections/6289 "2026-06-22T11:55:55Z")

</div>

Hi all, A class of content doesn’t fit Mopidy’s flat-track model well: one audio file with an internal tracklist Continuous live mixes, long classical works, podcasts or audiobooks with chapter markers. The data for t…

---

## [Mopidy 4.0 release candidates](https://discourse.mopidy.com/t/mopidy-4-0-release-candidates/6214)

<div class="topic-metadata">

**Author:** [@jodal](https://discourse.mopidy.com/u/jodal)\
**Replies:** 7\
**Last updated:** [April 20, 2026, 3:24pm UTC](https://discourse.mopidy.com/t/mopidy-4-0-release-candidates/6214 "2026-04-20T15:24:37Z")

</div>

Mopidy 4.0 is just around the corner. I’ve released 4.0.0rc1 and 4.0.0rc2 today, and will shortly (on the scale of hours to days) release 4.0.0 final if I don’t find any other issues. In other words, it is a good time t…

---

## [Mopidy 4.0.0a15: Expected a TlTrack instance, not { ... }](https://discourse.mopidy.com/t/mopidy-4-0-0a15-expected-a-tltrack-instance-not/6213)

<div class="topic-metadata">

**Author:** [@tkem](https://discourse.mopidy.com/u/tkem)\
**Replies:** 8\
**Last updated:** [April 15, 2026, 8:24pm UTC](https://discourse.mopidy.com/t/mopidy-4-0-0a15-expected-a-tltrack-instance-not/6213 "2026-04-15T20:24:34Z")

</div>

Sorry if this is a known issue, but I haven’t been following progress towards Mopidy v4 lately… Running Mopidy-Mobile on top of Mopidy 4.0.0a15 on Ubuntu 25.10, every time I try to play a Track I get something like: IN…

---

## [Plans to avoid pip --break-system-packages?](https://discourse.mopidy.com/t/plans-to-avoid-pip-break-system-packages/6195)

<div class="topic-metadata">

**Author:** [@MichaIng](https://discourse.mopidy.com/u/MichaIng)\
**Replies:** 2\
**Last updated:** [February 19, 2026, 6:29pm UTC](https://discourse.mopidy.com/t/plans-to-avoid-pip-break-system-packages/6195 "2026-02-19T18:29:42Z")

</div>

When Mopidy itself is installed via apt as system Python package, it requires any extensions to be installed on system level as well. Recent pip however requires the --break-system-packages flag for this to work. Moreove…