[texworks] packages

[Reno Torrance-Bessiere]

Where can I find documentation on LaTeX packages specifically using sinits?
----- configuration info -----
TeXworks version : 0.6.7 (MiKTeX 22.8.28)
Install location : 
C:/Users/User/AppData/Local/Programs/MiKTeX/miktex/bin/x64/miktex-texworks.exe

Library path : C:/Users/User/AppData/Roaming/TUG/TeXworks/
pdfTeX location : 
C:/Users/User/AppData/Local/Programs/MiKTeX/miktex/bin/x64/pdftex.exe
Operating system : Windows 10.0.22621
Qt version : 5.15.2 (build) / 5.15.2 (runtime)
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