built-in connections are connections that are always available and therefore that you don't need to add or create them and you can't delete them.
Tabulify comes actually with the following built-in connections
| Name | Description |
|---|---|
| cd | the current directory of the local file system |
| desktop | the user desktop directory of the local file system |
| smtp | the smtp server (local by default) |
| home | the user home directory of the local file system |
| mem | An internal memory connection used when loading and processing data in memory |
| log | the location of the tabli logs |
| project | the directory of the project on the local file system |
| sd | the script directory - the directory of the pipeline file in the local file system |
| tpcds | the table and data of the TPC-DS benchmark |
| temp | the temporary directory of the local file system |