Solution 1:

Birdfont is just the application for you then! Install it with:

sudo apt-get install birdfont

You can do all of what you have requested and more with it!

Description:

Font editor that lets you create outline vector graphics and export fonts
Birdfont is a free, open source font editor that lets you create outline
vector graphics and export ttf, eot & svg fonts.

Screenshots (but please don't judge the program by my bad drawing of the letter A where I should have drawn the letter B ;P):

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