After I saw the URL download function from Etcher someday, I thought that it'd be great if I can modify this to download the Odroid image when using the URL download function.
So I have started, and have developed Balena Etcher for our Odroid images in my spare time last a couple of months.
And the result is; Successful.
(Updated #2) Check these screenshots.
Could you find out the button named Flash Odroid image in the first image?
In the original Balena Etcher, that is the button to download an image file via URL a user entered. It hasn't been that long since it was added.
I replaced that button to the new button showing a dedicated procedure to select an image file to finally download.
I tried to use the "Balena things" including their UI components so that the new UI of the new modal to be showing familiar with the original one.
And I also tried to not interfere with the original components such as selecting a drive, flashing an image. That means, all the other functionalities alive even after my modification.
(Updated) I packed this for Linux and macOS, and Windows.
(Updated #3) The image list is from my AWS server. So I can update/correct the download URLs without building new binaries.
(Updated #2) Please notes,
Note 1: In the macOS application, it will warn you that the app is not signed. This program is not harmful (at least on my codes), so you can ignore that. But if you still have some doubt about this you can check that the source codes.

Note 2: In Windows, you can ignore a kind of security warning showing when you about to complete downloading the execution file. And, to use this properly, you have to run this as an administrator.
Note 3: If you find a bug, it may be the Etcher's bug, may not one by this Odroid edits unless you have faced in the Odroid modal.
Note 4: I'm new to Electron + React + Typescript. Any improvements to the codebase will be welcomed.
Note 5: Please share your ideas if it inspires you.
I opened this full source codes here: http://github.com/awesometic/odroid-etcher
And the download link is here: https://github.com/awesometic/odroid-etcher/releases