You can build it yourself, but even with a midrange desktop it'll take you at least an hour to build. A laptop would probably take 2-3 at least.
Are you going to read the source to confirm nothing malicious was added?
There's around 4.9k lines of python code and 15.9k lines of patches. That doesn't seem that hard to scrutinize. From a threat model point of view you should be more worried about supply chain attacks from all the third party programs/libraries you have installed on your computer.
You can pull trusted binaries from OpenBuildService now.