Bug Description

When a non-standard Hermes home location is set using HERMES_HOME as global environment variable (e.g. inside /etc/profile file), installing a system-wide Systemd unit does not carry over the variable value and always sets it as the default ~/.hermes folder for the current user.

See also #5947

Steps to Reproduce

1. Set the HERMES_HOME variable toba standard location (e.g. /etc/hermes-home)
2. Install the gateway Systemd unit system-wide: sudo hermes gateway install --system (note: the bug may also occur in case of user-scoped installation, but was not tested)
3. Inspect the generated Systemd unit file

Expected Behavior

The Environment declaration for HERMES_HOME variable inside the unit file should honor the value of the globally set HERMES_HOME variable

Actual Behavior

The value of the HERMES_HOME variable inside the unit file is always hardcoded to the standard home location for the current user (~/.hermes)

Affected Component

Setup / Installation

Messaging Platform (if gateway-related)

No response

Operating System

Debian Trixie

Python Version

3.11.9

Hermes Version

0.8.0

Relevant Logs / Traceback

Root Cause Analysis (optional)

No response

Proposed Fix (optional)

No response

Are you willing to submit a PR for this?

• I'd like to fix this myself and submit a PR