Help! How to proceed with Steam installation?

Help! How to proceed with Steam installation?:

Just purchased a Chromebook today, and was following the instructions in this website but now I’m stuck in this window and Steam isn’t installing. ūüôĀ I just want to play Stardew Valley.

submitted by /u/gubbabubbagump
[link] [comments] via Linux 101 stuff. Questions are encouraged, noobs are welcome!