I purchased a Roku model 3941X and set up the tools under WSL. It will build the application just fine, and the Development Application Installer will install the application, but it exits back to the menu on install on on launching the application from the menu. I tried both the gles2 and remote apps.
The device is on 10.5.0 build 4198-CR.
I get the follow on the console:
------ Running dev 'GLES2' main ------
** ERROR ** start() failed for: pkg_/sample-gles2. err: 13 (Permission denied).
11-04 02:19:18.587 [bs.idk.proc.exit] plugin:dev, pid: 5464, status: exit - 211, user requested: 0, proc: sample-gles2, exit code: ?
As someone that has been running various forms of linux for decades, I suspect it's more than just a problem with WSL. They are providing binary executables, without specifying what architecture it's designed to run on. While I haven't tested it yet myself, I'm guessing I'd have similar problems if I tried to run it on a raspberry pi or other arm computer.
That being said, I've always had less problems running linux in a virtual environment than WSL (1 or 2). VMware of course works good. I've also had success with VirtualBox and even HyperV.
I suspect we won't get WSL support in the near future unless Roku opens up the source code for the IDK build tools.
Different issue with the same result on CentOS - getting execution error:
BRIGHTSCRIPT: ERROR: roIDK: unsupported platform: pkg:/source/main.brs(3)
... and a strange looking gray on gray dialog on the device:
Are you using one of the supported devices listed in the documents?
I'm pretty sure the issue I ran into had to do with WSL not properly supporting permissions when using the Windows file system.