Uh, at 5-25 people you don't need process for that. You know everyone by name and know the informal hierarchy of the team. You ask Joe and show it to the team

Uh, at 5-25 people you don't need process for that. You know everyone by name and know the informal hierarchy of the team. You ask Joe and show it to the team they say cool, let's use it. At the pub five of you decide you will write the new module in rust because it's fun. Bam. Or just start use it and explain it to whomever concerned if you are that high up.