I followed these steps:
sudo apt-get install nodejs npm
sudo ln -s /usr/bin/nodejs /usr/bin/node
Next, install the chromeos-apk tool:
sudo npm install chromeos-apk -g
Make a directory in your home folder
mkdir apks
then download runtime library from this link [Archon], extract it into the apks directory. I used 32-bit Archon
Open your Chrome or Chromium browser version number is higher than 38, then Chrome > "Hamburger" menu > Tools > Extensions, click Enable developer mode, and use the Load unpacked extension button to load the Archon runtime library.
Then I downloaded the Instagram_10.17.0_apk-dl.com.apk file from http://apk-dl.com/
And then I ran:
chromeos-apk Instagram_10.17.0_apk-dl.com.apk --tablet
I'm getting the following message:
Failed to load APK
Failed to parse package name in the APK.
Unknown APK package.
Please enter the package name (i.e "com.skype.raider", if you get this wrong your app will NOT work):