Yes, there are special special front derailleur mounting clamps for the Birdy 3 from Ridea for instance. There was a Birdy 2 factory equipped with such a clamp+front derailleur.

Now the question is: is this really necessary, is a single front chainring not enough if a wider range cassette is used like a 0-34t for instance? Such a 9-34 provides 378% a range of while with 52-36+11-32 its 420%.

What is sure is that a special derailleur like this miroshift is not needed with a 9-32 or 9-34t cassette: nor Riese & Müller nor Pacific Cycles use such a derailleur, they use long cage Shimano Deore, medium cage Shimano 105, long cage Shimano Sora, long cage SRAM...

I have such a 52-36 compact front crankset on my Titanium Birdy (that has a front derailleur mounting for a braze on front derailleur on its frame because Pacific Cycles mount a 11-28t 11s cassette) coupled now with a 9-32t 11s cassette and a Ultegra medium cage derailleur and, even if I ride in a city with steep uphills and even I would like slightly shorter gear inches, I actually never really need the small 36t chainring.

So on my Birdy 3 Touring I have now a 50t front and a 9-34t cassette with also a Shimano Ultegra RD-R8000GS medium cage 11s derailleur (changing the chainrings of my Titanium Birdy is difficult and expensive because Pacific Cycles mounted a carbon FSA crankset with a proprietary chainring mounting and the Ultegra derailleur is the previous generation Ultegra that goes only up to 32t).