How to change default SQLite to MySQL for airflow in Ubuntu?

I want to set up apache airflow with MySQL instead of default SQLite.

I have run this command pip install 'apache-airflow[mysql]', as suggested in the documentation

I have the following info about my system:

• Ubuntu 22.04.1 LTS on WSL.

Apache Airflow
version                | 2.4.3
executor               | SequentialExecutor
task_logging_handler   | airflow.utils.log.file_task_handler.FileTaskHandler
sql_alchemy_conn       | sqlite:////home/maria/airflow/airflow.db
dags_folder            | /home/myname/airflow/dags
plugins_folder         | /home/myname/airflow/plugins
base_log_folder        | /home/myname/airflow/logs
remote_base_log_folder |


System info
OS              | Linux
architecture    | x86_64
uname           | uname_result(system='Linux', node='LAPTOP-28BMMQV7', release='5.10.102.1-microsoft-standard-WSL2',
                | version='#1 SMP Wed Mar 2 00:30:59 UTC 2022', machine='x86_64')
locale          | ('en_US', 'UTF-8')
python_version  | 3.10.6 (main, Nov  2 2022, 18:53:38) [GCC 11.3.0]
python_location | /usr/bin/python3


Tools info
git             | git version 2.34.1
ssh             | OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022
kubectl         | NOT AVAILABLE
gcloud          | NOT AVAILABLE
cloud_sql_proxy | NOT AVAILABLE
mysql           | mysql  Ver 8.0.31-0ubuntu0.22.04.1 for Linux on x86_64 ((Ubuntu))
sqlite3         | NOT AVAILABLE
psql            | NOT AVAILABLE


Paths info
airflow_home    | /home/myname/airflow
system_path     | /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/ho
                | me/myname/.local/bin
python_path     | /home/myname/.local/bin:/usr/lib/python310.zip:/usr/lib/python3.10:/usr/lib/python3.10/lib-dynload:/hom
                | e/myname/.local/lib/python3.10/site-packages:/usr/local/lib/python3.10/dist-packages:/usr/lib/python3/d
                | ist-packages:/home/myname/airflow/dags:/home/maria/airflow/config:/home/myname/airflow/plugins
airflow_on_path | True


Providers info
apache-airflow-providers-common-sql | 1.3.0
apache-airflow-providers-ftp        | 3.2.0
apache-airflow-providers-http       | 4.1.0
apache-airflow-providers-imap       | 3.1.0
apache-airflow-providers-mysql      | 3.3.0
apache-airflow-providers-sqlite     | 3.3.0

Now when I try to initialise the database, it defaults to SQLite and I don't know how to change it?

myname@LAPTOP-28BMMQV7:/root$ airflow db init
DB: sqlite:////home/maria/airflow/airflow.db
[2022-11-20 16:04:56,628] {migration.py:204} INFO - Context impl SQLiteImpl.
[2022-11-20 16:04:56,628] {migration.py:207} INFO - Will assume non-transactional DDL.
[2022-11-20 16:04:56,955] {migration.py:204} INFO - Context impl SQLiteImpl.
[2022-11-20 16:04:56,956] {migration.py:207} INFO - Will assume non-transactional DDL.
[2022-11-20 16:04:56,956] {db.py:1565} INFO - Creating tables

INFO  [alembic.runtime.migration] Context impl SQLiteImpl.

I can successfully run a MySQL server with sudo service mysql start/stop and create a database from there.

I have a MySQL workbench installed as well.

Can someone tell me how I can initiate MySQL instead of SQLite?