Problems with .env variables referencing other .env variables about business-partner-agent

[domwoe]

If look through .env-example I see the following cases:

BPA_PROFILE_ENDPOINT=https://${BPA_HOST}/profile.jsonld

LEDGER_URL=https://indy-test.bosch-digital.de
BPA_LEDGER_BROWSER=${LEDGER_URL}

AGENT_HTTP_PORT=8030
AGENT_ADMIN_PORT=8031
AGENT_ENDPOINT=http://${BPA_HOST}:${AGENT_HTTP_PORT}
ACAPY_ADMIN_URL=http://aca-py:${AGENT_ADMIN_PORT}
ACAPY_AGENT_URL=http://aca-py:${AGENT_HTTP_PORT}

Except the middle case (LEDGER_URL and BPA_LEDGER_BROWSER) which might make sense to configure them independently, I'd say the other ones are directly dependent. Couldn't we just move

BPA_PROFILE_ENDPOINT=https://${BPA_HOST}/profile.jsonld

AGENT_ENDPOINT=http://${BPA_HOST}:${AGENT_HTTP_PORT}
ACAPY_ADMIN_URL=http://aca-py:${AGENT_ADMIN_PORT}
ACAPY_AGENT_URL=http://aca-py:${AGENT_HTTP_PORT}

inside the docker-compose.yml and change the .env to the following?

LEDGER_URL=https://indy-test.bosch-digital.de
BPA_LEDGER_BROWSER=https://indy-test.bosch-digital.de