No, I think you have it mixed up. It's quite clear that the authority came from the 2022 Inflation Reduction Act, which was was well known to have passed without a single Republican vote. It's also quite clear that in the context of the top-level comment, "this program" mentioned means the Direct File as it operates, not the release of source code.

> The Inflation Reduction Act (IRA) was signed into law in August 2022.1 Section 10301(1)(B) of the IRS provided the Internal Revenue Service (IRS) with $15 million to establish a task force to design an IRS-run, free direct electronic filing (e-file) system commonly referred to as “Direct File” ...

https://www.tigta.gov/sites/default/files/reports/2025-03/20...

You're bringing up an unrelated law that didn't even exist at the time of the launch of Direct File in early 2024.

I was under the impression that the OP was talking about the SHARE It Act.

That would be the current ruling party

It was a massively successful pilot that half the country used. The other option is free fillable forms which is dogshit.