<bin format>/<arch>/<bits>/<library>/<library>.pat
<bin format>/<arch>/<bits>/<library>/<library>.description
<bin format>/<arch>/<bits>/<library>/<library>.src.sha1

Where

<library>.pat is the pat format to use to generate the final library (it is allowed to have other pat files in the folder).
<library>.description is a human readable description of the library with max len of 1024 chars.
<library>.src.sha1 must contain the sha1 values of the original source file (deb, dll, etc..)
<bin format> is the Rizin bin format name (use rz-bin -L to see the supported ones)
<arch> is the Rizin architecture name (use rz-asm -L to see the supported ones)
<bits> is the Rizin architecture bits (use rz-asm -L to see the supported ones based per architecture)

Example generation of new library

# Find arch, bits and format
$ rz-asm -L | grep tricore
_dA_  32         tricore     GPL3    Siemens TriCore CPU
$ rz-bin -L | grep ELF
bin  elf         ELF format plugin (LGPL3)  

# Create folders and files
$ mkdir -p sigdb-source/elf/tricore/32/mylibrary
$ echo "My Library Description" > sigdb-source/elf/tricore/32/mylibrary.description
$ sha1sum sources.zip > sigdb-source/elf/tricore/32/mylibrary.src.sha1

# Resolve automatically conflicts and generate the final pat file
$ python .scripts/generate-pat.py --auto --input /path/to/signature.pat --output sigdb-source/elf/tricore/32/mylibrary/mylibrary.pat

Generate .sig files

$ mkdir build-sig
$ python .scripts/generate-sig.py --rz-sign /path/to/rz-sign --source /path/to/sigdb-source/ --output build-sig