On Sentry:

It was very easy to get set up. I created an organisation & project on their server; added their addon to Threadbare; started the game, triggered an error, and lo! it appeared on the Sentry dashboard.

I added one line of code to player_hook.gd:

diff --git a/scenes/game_elements/characters/player/components/player_hook.gd b/scenes/game_elements/characters/player/components/player_hook.gd
index 824e0061..40252494 100644
--- a/scenes/game_elements/characters/player/components/player_hook.gd
+++ b/scenes/game_elements/characters/player/components/player_hook.gd
@@ -132,6 +132,7 @@ func _new_hook_string() -> Line2D:
 character.add_sibling(new_hook_string)
 new_hook_string.owner = character.owner
 string_thrown.emit()
+ SentrySDK.metrics.count("string_thrown")
 return new_hook_string

and now I get a hooks-per-second metric on the server side:

They have a user feedback feature, with a ready-made Godot scene. I haven't tried it but I'm sure it would work. https://docs.sentry.io/platforms/godot/user-feedback/

The free plan only allows one user. The Team plan is 26ドル/month. They have an open source program we could apply to. It is possible to self-host the server but I consider the effort involved in doing that to be more than 26ドル per month.

The addon is, deep breath, 1.1 gigabytes. This is because they have support for many platforms and architectures:

55M	addons/sentry/bin/android
228M	addons/sentry/bin/ios
159M	addons/sentry/bin/linux
135M	addons/sentry/bin/macos
244M	addons/sentry/bin/web
219M	addons/sentry/bin/windows

Obviously we could delete unwanted platforms and e.g. only have the appropriate release binary for wasm, the one platform we really care about at present (or if we are feeling really fancy also include the Linux build):

❯ ls -lh addons/sentry/bin/web/libsentry.web.*
-rw-r--r--. 1 wjt wjt 60M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.debug.wasm32.debug
-rw-r--r--. 1 wjt wjt 60M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.debug.wasm32.nothreads.debug
-rw-r--r--. 1 wjt wjt 2.5M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.debug.wasm32.nothreads.wasm
-rw-r--r--. 1 wjt wjt 2.5M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.debug.wasm32.wasm
-rw-r--r--. 1 wjt wjt 58M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.release.wasm32.debug
-rw-r--r--. 1 wjt wjt 58M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.release.wasm32.nothreads.debug
-rw-r--r--. 1 wjt wjt 2.4M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.release.wasm32.nothreads.wasm
-rw-r--r--. 1 wjt wjt 2.4M Mar 23 16:29 addons/sentry/bin/web/libsentry.web.release.wasm32.wasm

Still, not ideal, and it would remain to be seen what happens if the binary for the current platform is missing.

Whatever tool we do (or don't) use, there is also a privacy / GDPR / etc. angle.

I am on record as believing that, contrary to popular opinion, anonymous telemetry in open-source software is good, actually, and should be enabled by default. But one does have to justify doing that (i.e. in GDPR terms identify whether personal information is being collected, and if so, on what basis it is being collected), and notify users accordingly (seeking explicit permission in the case of some of those bases). This is certainly more complicated than just not collecting any information!

We also have the interesting situation that we probably don't want to enable telemetry from forks. Or do we?

• Can we add an in-game bug report feature?

For an initial impl. of this I added:

• Add "Report a Problem" button to pause screen #2081