I am using EB Garamond for my font, but ther= e's a few places I need some special characters, like a checkmark symbol, s= o I'm trying to set FreeSerif as a fallback.

\definefallbackfam= ily[main] [serif] [file:/home/joel/.fonts/FreeSerif.otf] [range=3Ddingbats,= force=3Dyes]
\definefallbackfamily[main] [sans] [file:/home/joel/.fonts= /FreeSerif.otf] [range=3Ddingbats, force=3Dyes]

\starttypescript[ser= if]            =             &nb= sp;   [garamond]
    \definefontsynonym[Serif]&= nbsp;           &nbs= p;       [file:/home/joel/.fonts/EBGaramond-R= egular.otf]
    \definefontsynonym[SerifBold]  =             &nb= sp; [file:/home/joel/.fonts/EBGaramond-Bold.otf]
    \def= inefontsynonym[SerifItalic]        =         [file:/home/joel/.fonts/EBGaramo= nd-Italic.otf]
    \definefontsynonym[SerifBoldItalic]&nb= sp;           [file:/home= /joel/.fonts/EBGaramond-BoldItalic.otf]
    \definefontsy= nonym[SerifCaps]          = ;      [file:/home/joel/.fonts/EBGaramond12-AllSC.= otf]
\stoptypescript
%
\starttypescript[sans]   &nb= sp;            =             [garamon= d]
    \definefontsynonym[Sans]    &n= bsp;            = ;   [file:/home/joel/.fonts/OptimaLTStd-Bold.otf]
  = \definefontsynonym[SansBold]      &nbs= p;         [file:/home/joel/.fonts/= OptimaLTStd.otf]
    \definefontsynonym[SansItalic] =             &nb= sp; [file:/home/joel/.fonts/EBGaramond-Italic.otf]
  &nb= sp; \definefontsynonym[SansBoldItalic]      &= nbsp;     [file:/home/joel/.fonts/LeMurmure-Regular.otf= ]
    \definefontsynonym[SansCaps]    = ;            [file:/= home/joel/.fonts/EBGaramond12-AllSC.otf]
\stoptypescript
%
\startt= ypescript[garamond]
    \definetypeface[garamond] &n= bsp;            = ;      [rm][serif][garamond][default]
&nb= sp; \definetypeface[garamond]      &nbs= p;             = [ss][sans][garamond][default]
    \definetypeface[garamon= d]            &= nbsp;       [mm][math][math][default]
\sto= ptypescript
%

I've looked through many h= andbooks and old questions on-line and tried many configurations. It appear= s the way to define the fallback has changed many times over the years, and= none I've tried works. I've confirmed I can make ConTeXt use my font "Free= Serif.otf", but I can't get it to appear as a fallback. Basically if the ch= aracter can't be found in EB Garamond, I hope it will use FreeSerif.otf, bu= t generally, I'm just using it for a couple special symbols.

How do I correct his so it properly displays the symbols from FreeSeri= f.otf?

--Joel