I’m very disappointed to discover the dropping of arm7 support for the ESPHome Builder addon. My Odroid XU4 (which you can still buy from the manufacturer) still supports everything I need from Home Assistant in general and was perfectly adequate for recompiling my ESPHome device firmwares.
It’s a shame if the Home Assistant ecosystem in general is ready to casually cast a large number of arm7 devices into landfill.
Can you give us any insides on this? AFAIK not only HA but also HaOS is still available for (~15 years old) armv7 architecture based devices
Regarding the long announced removal of the esphome (device builder/compiler) that reads 
Removal of
armv7Docker SupportESPHome no longer supports
armv7hardware. This is due to both waning support as it relates to tooling and performance reasons. We strongly recommend moving to a more modern architecture, especially if you’re using the ESPHome Device Builder to build/compile firmware for your devices.
You just might fork 
it and make it available (under a new name) - thanks to open source 
Last time I tried to compile on a raspberry pi 3 it did always crash (despite limiting it to one core only) so the move not providing the device builder anymore for this class of devices (because for most people it will not work anyways) only makes sense to me 
If I go to the hardkernel site I only see a big DISCONTINUED and a red OBSOLETED - This product is no longer available. 
So you are also still using Win95 or any other OS from that era?
That’s progress and everyone is affected by this at some time: I also have some devices (mobile, laptop, desktop) which are not up to current standards.
Do you know that you can install/use the ESPHome builder on many other platforms?
What I’m missing is the fact that the (over 10 years old SoC) manufacturered by Samsung and used in 2014 in the Samsung S5 was already abandoned by the vendor just 3 years later (2016 with Android 6). 
Rather Samsung to blame for it’s planned obsolescence and HA and the whole open source community to be praised 
for allowing (very) old devices still be capable to be used and not ending up as landfill 
Since over 8 years it is essentially the open source community getting YOUR thing mainlined and updated. 
Still appears to be available (in limited quantity) on their UK site:
First line in the description in BIG fat red letters:
THIS UNIT IS END OF LIFE
And again, you are barking up the wrong tree 
That is the beauty of open source. People who are disappointed enough can choose to support the things that are no longer supported. Of course, that comes with the responsibility to also support all the dependencies that no longer support arm7.
I am not sure why you would want to continue using arm7 to build esphome firmware for devices. Using esphome on just about any computer with a decent CPU from that last decade or so will likely be far faster.
Arm7 is from more than 20 to over 30 years ago. That is many lifetimes in the technology world. It is well past time to let it go. But, if you want to live in the past, stay with the last version of esphome that supports it.
