The references I was given did not make it make simple to select
mutually compatible components -- the required information being
scattered among multiple tables or URLs.

I propose to create a single spreadsheet {likely distributed in the TAB
delimited variation of a CSV file}.

I have two specific questions:
   1. Has this been done before?
   2. Is there an already existing site that would accept it?
      {Their submission requirement could affect my layout.}
      {I'm still working on column headings that would balance
       coverage and simplicity ;}

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