Current situation:
m.wikipedia.org - redirect to en.m
m.wikisource.org - mobile verson of old multilingual Wikisource, serving as a portal
m.wiktionary.org - nothing
m.wikinews.org - nilch
m.wikiversity.org - nada
m.wikibooks.org - не працює

Should we standardize?

I think m.wikipedia.org to enwp redirect is silly.. All these should redirect to the portal of each project. But a better alternative would be to create mobile friendly portals.

So, stuff to do:

m.wikipedia.org - change to (mobile) portal like wikipedia.org (instead of redirecting to en)
m.wikisource.org - leave as is
m.wiktionary.org - show portal like wiktionary.org
m.wikinews.org - show portal like wikinews.org
m.wikiversity.org - redirect to beta.m.wikiversity.org, like oldwikisource?
m.wikibooks.org - wikibooks.org redirects to en, so redirect to en.m.wikibooks.org (maybe later in a separate task, remove redirect and replace with portal - but that should happen on both desktop and mobile)
m.wikivoyage.org - show portal like wikivoyage.org

Sound good @Glaisher?

In T78421#845553, @Glaisher wrote:

I think m.wikipedia.org to enwp redirect is silly..

which is T69015: m.wikipedia.org and zero.wikipedia.org should redirect differently

But a better alternative would be to create mobile friendly portals.

It looks like these portals do have mobile friendly versions already. It appears differently when viewed on a mobile.

In T78421#947412, @Krenair wrote:

Sound good @Glaisher?

Yeah, this makes sense except for wikibooks.org. We should probably keep it as it is for now (and make it redirect to www.wikibooks.org in a separate task).

Change 184690 had a related patch set uploaded (by Glaisher):
Add missing m.{project}.org entries

https://gerrit.wikimedia.org/r/184690

Patch-For-Review

In T78421#947412, @Krenair wrote:

m.wikiversity.org - redirect to beta.m.wikiversity.org, like oldwikisource?

use the wwwportal instead of betawv?

Change 184690 merged by Faidon Liambotis:
Add missing m.{project}.org entries

https://gerrit.wikimedia.org/r/184690

DNS set up now. Thanks!

Looks like missing.php is doing the redirects for those domains to incubator now. Do we now make missing.php handle these m domains now?

scratch that, missing.php is for missing wikis, not mobile sites. need an apache config for this.

Change 185461 had a related patch set uploaded (by Glaisher):
Add apache config for m.{project}.org (-wikipedia)

https://gerrit.wikimedia.org/r/185461

Patch-For-Review

Change 185461 merged by Alexandros Kosiaris:
Add apache config for m.{project}.org (-wikipedia)

https://gerrit.wikimedia.org/r/185461

Yay, thanks! So all m.project.orgs are now an alias for www.project.org, except m.wikipedia.org. There is a separate task for m.wikipedia.org (T69015).