First time US tax filing

[Paul13]

Hello,
I worked for Canadian company for 6 months and US company for 6 months in 2023.
TN visa holder, hybrid job, daily commuter to US (3 days a week), Canadian resident and US non resistant.

1. How should I submit the US taxes? I think 1040NR and can it be filed online? Can you please provide website which supports online submission?
2. How can I take advantage of the tax treaty? Can it be done with 1040NR online tax filing OR has to be paper?
3. Which option is better, 1040NR or tax treaty or both are same?
4. I am filing Canadian taxes by my own and understand it. Can I do the same for US since it is only W2?
5. My wife works in Canada. Do I need to report her income for US tax filing?

Apologies for dumb questions but need your help to understand. I tried to find answers from other posts but couldn't so asking here.

Thank you so much.

[horroraround]

Are there no tax provisions in your work contract?

[Paul13]

No, there is nothing like that.!

[nelsona]

The issue of commuter and first year taxes have been dealt with here ad infinitum. PLEASE research.