Sqlite has a native mechanism to handle extensions to be added at runtime.
They can be either added via sqlite3_load_extension or calling the sql function load_extension(X,Y).
In both cases this functionality must be enabled first:

• For the first case by configuring the db handle as shown in the referenced page (or by usingsqlite3_enable_load_extension as well)
• In the second case by using sqlite3_enable_load_extension which also enables the sql function.

I think it would be nice to have support for sqlite native extensions in txiki.