Transact SQL :: Self Linked Server For Purpose Of Alias?

basically, we have two databases, one with fix name, eg. DB1 in all environments, and another is named with prefix based on environment, eg. DB2_DEV, DB2_TEST, that is generated by some managed application. 

Then we have queries or view/SPs residing in the first database, eg. DB1 that access database resources from the second database, DB2_***. Both databases are residing in the same SQL instance.

Currently, we have hardcoded the database name in the query but would prefer not to manually rename or write other scripts to update the query with the correct database name when deploying to other environments.

For example:

SELECT * FROM DB2_DEV.dbo.vAccounts
When deploy to TEST, we need to update the query to:
SELECT * FROM DB2_TEST.dbo.vAccounts

So, I looked at Synonyms but it seems it can only create 'alias' for tables or views, and not database.

Hence, last thought is to create self linked server, so I can write my query like below and setup the linked server accordingly.

SELECT * FROM SRCDB.dbo.vAccounts

Any consideration to think of, eg. performance, security, etc?