Free community-driven PGN databases like PGN Mentor or Master Your Chess often host similar repertoire files for standard systems like the London or Petroff if you are looking for generic versions of these openings. The Equalizer's Opening Repertoire - Chessable

Over 55,000 words of instruction accompanying the moves. How to Access the Repertoire

Chessable typically allows course owners to export variations to PGN for offline study.

Play simple, super-solid lines that avoid flashy opening overtures and go straight for an equal but strategically rich middlegame. The Equalizer's Opening Repertoire - Chessable

The Equalizer’s Opening Repertoire is a compact, low-theory chess course designed to help players reach solid, equal middlegame positions without memorizing extensive opening variations.