A series of scripts that add "open last font" functionality to RoboFont. Set the CanCloser.py as a startup script and CanCloser.py uses command+shift+T to open the last font.

CanCloser.py

from mojo.extensions import getExtensionDefault, setExtensionDefault
from mojo.events import addObserver

'''
Must set this as a start-up script!
This observer adds the font path to a list that can be accessed later
'''

DEFAULTSKEY = "com.connordavenport.CanOpener"

class CanCloser:

	def __init__(self):
		addObserver(self,"fontWillCloseObserver","fontWillClose")

	def fontWillCloseObserver(self,info):
		font = info["font"]
		fontPaths = getExtensionDefault(DEFAULTSKEY)
		if font:
			if fontPaths:
				fontPaths.insert(0, font.path)
				# Limit the amount of files in the list to 10
				fontPaths = fontPaths[:10]
			else:
				fontPaths = [font.path]
				
			setExtensionDefault(DEFAULTSKEY, fontPaths)

CanCloser()

CanOpener.py

# menuTitle : Open Last Closed Font
# shortCut  : command+shift+T

'''
This script uses the list of font paths to reopen recentely closed fonts. 
Similiar to opening old tabs in your browser.
'''

from mojo.extensions import getExtensionDefault, setExtensionDefault
import os.path

DEFAULTSKEY = "com.connordavenport.CanOpener"

class CanOpener:

	def __init__(self):

		# Double check that the font path still exists and isnt already open
		fontPaths = [fp for fp in getExtensionDefault(DEFAULTSKEY) if os.path.isdir(fp)]

		if fontPaths:
			firstFont = fontPaths[0]
			print(f"opening {os.path.basename(firstFont)}...")
			OpenFont(firstFont, True)

			if len(fontPaths) == 1:
				fontPaths = []
			else:
				fontPaths.remove(firstFont)

			setExtensionDefault(DEFAULTSKEY, fontPaths)

CanOpener()