Run a dependency scanner. For Linux: dpkg -l or rpm -qa. For Windows: winget list or Get-Package. Export the list to requirements.txt.
Place one copy in a fireproof safe on-site (for quick recovery) and another off-site (e.g., safety deposit box). drp offline pack archive
Identify the absolute minimum software needed to run your transaction engine. Exclude "nice-to-have" analytics or reporting tools. Run a dependency scanner
An archive is only as good as its last update. Follow these protocols: Identify the absolute minimum software needed to run
Maintain a rolling archive. Label them clearly: