use nds2 functions, drop use of connection object
The connection object is just nothing but a pain and isn't really needed.
Maintenance will be performed on git.ligo.org, containers.ligo.org, and docs.ligo.org on Tuesday 16 December 2025 starting at approximately 900 MST (1600 UTC). It is expected to take around 30 minutes and there will be several periods of downtime throughout the maintenance. Please address any comments, concerns, or questions to the helpdesk.
The connection object is just nothing but a pain and isn't really needed.