On Mon, Jan 20, 2025 at 06:34:11PM +0000, Andrew Back wrote: > On 20/01/2025 17:09, ron minnich wrote: > > I'm getting more and more bothered by the mountain of things going on in > > my phones that I can never understand. > > > > So I got curious and found this: > > https://www.instructables.com/Build-Your-Own-Smartphone/ <https:// > > www.instructables.com/Build-Your-Own-Smartphone/> > > > > and now I can't get a cellphone that runs plan 9 out of my head. > > > > Am I out of my head? > > The problem with 2G and 3G is that they're either gone or soon to be gone in > a lot of places. With 4G and 5G things get more complex, since there is no > circuit switched voice; you either fall back to 2G/3G for voice and SMS, or > need an IP Multimedia System (IMS) client to support native voice and > (VoLTE/VoNR a.k.a. "HD Voice") and text messaging.
The original hellaphone was not Plan 9, but Inferno running on top of an Android with the UI removed, which meant they didn't have to actually make the sausage to get working comms. This is an approach that has been taken by several 'not android' phones over the years, such as the Punkt MP-02 and the Light Phone II. There are two different things people think of when someone says "plan 9 phone." Some folks just want a Plan 9 userspace on a mobile device, which is the hellaphone approach, and other people want to run the Plan 9 kernel on a mobile device, which is what driusan is talking about... The problem with the original Hellaphone implementation is that it is nailed to the Android APIs of the era, and Google likes to replace those approximately weekly. Following their documents, it took me forever to get working, but most of the work was on the Android side of things (specifically rolling back to whatever supported APIs I needed, almost all of which were one or two generations behind). khm ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T937367c51de50ce3-M0eb8245cbb2e10536a8de39c Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
