The discussion revolves around making the Chat Tab the default view on Mobile in Discourse. lisandro_iaffar initially asks if this is possible through configuration or coding. Canapin responds that it’s not possible through configuration but might be achievable with a custom script.
lisandro_iaffar is directed to a theme component that can help achieve this by Don, who shares a link to a custom homepage solution. lisandro_iaffar implements the solution and expresses gratitude to Canapin and Don for their help, ultimately achieving their goal of making the Chat Tab the default view on mobile using the custom homepage plugin and APK functionality.
Hello! 
I’m ecstatic at how awesome Discourse is becoming. There is one last configuration on the path of making Discourse awesome for mobile, which is to be able to make the Chat Tab the default view on mobile (not requiring the users to make this default by themselves). Is that possible, either by configuration or coding?
Thank you in advance for any hint! 
Update: this is how I completely solved my use-case at the end, adding to what was answered here.
Hello Lisandro 
This is not possible in the configuration.
In the current state, I think it would be possible with a custom script, so I’ve moved the post in Development to see if someone could figure out a solution.
Hello,
If default view means homepage I think you can give a try with this theme component. 
Absolutely wonderful. Works straight out of the box, thank you so much @Canapin for bringing the topic here and @Don for the precise answer. I used the APK functionality to use my forum as an app, so now I essentially made my own messaging server. This is absolutely insane.
Also, thank you twice @Don , because this plugin also does other things which I really needed (the last time I saw the development of that plugin was 2 years ago… men, time flies…)
Thak you both again!!! (and sorry for the delay in my answer 
)