I live in NH with a company HQ'd in Boston. I don't pay Mass taxes and haven't for about 4 years since I stopped working even partially in MA. As others have noted, if you physically work in NH, you are not working in MA, so no taxes. If you aren't 100% remote, you owe MA taxes on the days you work in MA, but MA isn't coming after you for that one day you had in-town meetings per quarter.

When I was only partially remote, my payroll team would tax me at 40% of normal (I was 3 days remote) for MA.