Enter Unicode using code point
On a WindowsPC, entering an arbitrary Unicode character is as easy as typing the four hex digits and pressing alt-x. On my Mac, I needed to open the Unicode character pallet.
I discovered a cool feature on the Mac that makes entering Unicode as easy. In System Preferences, Keyboard, Input sources, add the Unicode Hex Input source. When that input source is selected, you can type unicode characters by holding down option, then pressing the four hex digits.