So, yes, we know the mRNA sequence of the Moderna, BioNTech/Pfizer and CureVac vaccines. Moderna did not publish this sequence themselves, but because RNA can be read (‘sequenced’) in the lab, it is now also available.
As yet however, there is no technology that lets you “just print” this code as mRNA. There barely are DNA printers, and even these are not really desktop things, and from what I hear, still need you to send off your results for post-processing.
Source: Berthub