failed to connect to `user=myuser database=myapp`: [::1]:5432 (localhost): server error: FATAL: role "myuser" does not exist (SQLSTATE 28000) (localhost): server error: FATAL: role "myuser" does not exist (SQLSTATE 28000) exit status 1 - Qiita

View the Qiita 15th anniversary article

failed to connect to `user=myuser database=myapp`: [::1]:5432 (localhost): server error: FATAL: role "myuser" does not exist (SQLSTATE 28000) (localhost): server error: FATAL: role "myuser" does not exist (SQLSTATE 28000) exit status 1likers

No likers