docker compose example doesnt work

[Sloth-on-meth]

all i get is

b_1                | 2021-08-09 13:52:07.414 UTC [34] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:07.414 UTC [34] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:07: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:08.424 UTC [35] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:08.424 UTC [35] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:08: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:09.430 UTC [36] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:09.430 UTC [36] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:09: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:10.437 UTC [37] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:10.437 UTC [37] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:10: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:11.445 UTC [38] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:11.445 UTC [38] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:11: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:12.451 UTC [39] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:12.451 UTC [39] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:12: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:13.456 UTC [40] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:13.456 UTC [40] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:13: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:14.463 UTC [41] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:14.463 UTC [41] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:14: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:15.471 UTC [42] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:15.471 UTC [42] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:15: db: Could not connect. Will try again. password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:16.476 UTC [43] FATAL:  password authentication failed for user "joplin"
db_1                | 2021-08-09 13:52:16.476 UTC [43] DETAIL:  Role "joplin" does not exist.
db_1                |   Connection matched pg_hba.conf line 99: "host all all all md5"
app_1               | 2021-08-09 13:52:16: db: Could not connect. Will try again. password authentication failed for user "joplin"

using this

https://github.com/laurent22/joplin/blob/dev/docker-compose.server.yml