In Austria, the "IT Kollektivvertrag" [0][1] (think contract for the whole IT collective/unions) demands a minimum of €2503 brutto (before taxes) per month for developers (those are normally falling under ST1 category), and that 14 times a year, and that's for entry level (as in, not first job but starting at a company). Note also the 14 times a year, where the last two extra salaries (Christmas pay for December and vacation pay for June) is taxed much less (note, we can get bonuses on top of that too).
[0]: https://www.wko.at/service/kollektivvertrag/kv-abschluss-inf...
Note for above PDF (only the short money table the full one can be easily found via searching "Austria IT Kollektivvertrag 2022"):
- The ST1 is for devs, and LT1 for leadership roles.
- "Einstiegsstufe" is Junior, "Regelstufe" is "normal" and "Erfahrungsstufe" is Senior
So if you get hired as senior in a leadership role you'd be entitled to €5521 Brutto salary, 14 times a year, or more depending on your experience/knowledge and your negotiation skills.
In France a young developer easily costs €100k/year to employ, even if he earns a third of that before taxes.
According to my napkin calculus, you could get about 4.5-9 developers (for 1-2x minimum wage) onboard here in France for 28k€/month. I'm betting in other countries with low salaries and a vast talent pool, 28k€/month would get you even more employees.