Question juridique clé
Whether the appeal in public law is admissible despite the discretionary nature of Art. 30 LEtr.
Solution extraite
No enforceable right to a residence permit exists because Art. 30 LEtr is discretionary; the public-law appeal is therefore inadmissible.
Motifs extraits
Since the applicant cannot derive a legal entitlement from federal or international law, the case falls within Art. 83 lit. c LTF.