FAQ: run password commands as evcc user#1085
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pairs with evcc-io/evcc#30703
The documented password set/reset commands run evcc as the invoking login user. On package installs the database at /var/lib/evcc/evcc.db is owned by the evcc service user, so the database opens read-only and the command fails with "attempt to write a readonly database (8)".
Prefix the commands with sudo -u evcc and use the --database flag instead of the EVCC_DATABASE_DSN variable, since sudo's default env_reset policy does not pass command-line environment assignments without the SETENV tag.