There is an entire community of users who can't resist exploring new techniques to install operating systems on phones that haven't officially received any support to run said OS. To that end, Microsoft enthusiasts have been attempting to bring different desktop versions of Windows to Windows phones.
Earlier this month, a Lumia 830 powered by Windows 10 was showcased, along with Windows RT installed on a Lumia 950. Most recently, however, a project to properly run Windows RT 8.1 on a Lumia 640 XL was initiated by Twitter user, @imbushuo. It seems that his project has been making new strides, with GPU support on the processor and audio over Bluetooth now being made available.
As can be observed from the video uploaded by the user named Ben, videos can now be played quite smoothly, with the audio currently routed via Bluetooth. Moreover, the phone currently seems to be powered by Qualcomm's Adreno 305 chip, with the specifications for this GPU being detailed in the following tweet:
Latest progress pic.twitter.com/1ksik2mKqD— Ben | imbushuo (@imbushuo) January 27, 2018
Interestingly, Ben also recently announced that he would be publishing notes on how to deploy this OS on a device quite soon. However, as cool as it sounds, a phone running a full desktop version of Windows might not be particularly enjoyable in a more practical sense for the average user. In any case, if you're interested in following the progress of this project further, you can learn more about it from Ben himself.