In this section, I will present details of two such precomputed QM databases. One is based on FDA-approved drugs and includes nearly 1,600 drugs. The other is derived from the COCONUT natural compounds database , currently covering approximately 4,000 natural compounds. These databases are designed for drug repurposing research and are incomplete at this time. As computational resources expand, I plan to include the remaining FDA-approved drugs and extend the database to cover most approved drugs worldwide. I also plan to expand the COCONUT QM library, as the COCONUT database itself contains hundreds of thousands of natural molecules. The summary of the QM conformational data structure can be conveniently displayed using the tree command in Linux with the --filelimit option, which shows the number of files in each directory. The summary for the FDA-approved drug database is shown below, followed by a more detailed explanation. The construction details of the two databases are as follows: