[Proposal]: Use pure sql+query builder instead of ORM

[JairDavid]

Pros:

• Better performance
• Avoid extra abstraction layer
• Avoid dependecy chain

Cons:

• "Slow development exp"
• Handle queries manually

see:
SQLX: https://github.com/jmoiron/sqlx
SQUIRREL: https://github.com/Masterminds/squirrel