URI: 

       _f_f - 9base - revived minimalist port of Plan 9 userland to Unix
  HTML git clone git://git.suckless.org/9base
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
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       _f_f (60B)
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            1 /build_ff {
            2     pop
            3     size .05 mul neg 0 (ff) ashow
            4 } def