unpublished rulings are available from Lexis, Westlaw, and Bloomberg Law.

For example:

Anderson v. State, No. 06–12–00200–CR, 2013 Tex. App. LEXIS 7975, 2013 WL 3329027, 2013 BL 172373 (Tex. App.--Texarkana June 28, 2013, no pet. h.) (not designated for publication).

All that an unpublished decision means is that it will not be published in a reporter, such as Southwestern Reporter 3d, and the use as an authority in court pleadings is limited.

They are still released publicly. The secret courts don't release anything, so the public has no idea what is going on.