Of course, if this continues happening it may be time for the OSS community seriously consider migrating en masse.
[Edit to fix grammar - thanks for the corrections!]
As you note, en masse is common — enough so that you even don't need to italicize it (although you can).
Of course, if this continues happening it may be time for the OSS community seriously consider migrating en masse.
[Edit to fix grammar - thanks for the corrections!]