Using lsst-texmf with overleaf
If you wish to edit and  lsst-texmf document on Overleaf you must make some changes on overleaf.
on the Overleaf Menu choose setting and switch the compiler to LuaLaTex
 
In the same settings menu choose the Main Document to be the AAATN-NNN.tex
 
create latexmakerc  with contents as listed below.
 
$ENV{'TZ'}='America/Los_Angeles';
$ENV{'TEXMFHOME'}='./texmf';
$ENV{'TEXINPUTS'}='./texmf//:' . $ENV{'TEXINPUTS'};
$ENV{'BSTINPUTS'}='./texmf//:' . $ENV{'BSTINPUTS'};
 
 
Then overleaf should be able to compile the document.