We present the Quantum Vacuum Geometry (QVG) programme, an extension of the Chamseddine—Connes noncommutative geometry framework that derives the Standard Model parameters, the cosmological constant, and the CMB temperature from a single geometric principle.Starting from five algebraic axioms (C1—C5) on the finite spectral triple, the unique algebra of minimal dimension is AF = C ⊕ H ⊕ M3(C), generating gauge group SU(3) × SU(2) × U(1), three fermion generations (NF = 96 modes), and the exact hypercharge trace TrF Y 2 = 10.The original QVG contribution is a spectral free-energy functional Fρ[T ] =i ρiλi + E0 i ρi ln ρi whose unique fixed point ρ∗ = 1/NF determines all nineteen SM parameters. Numerical computation at N = 96 gives fermion masses to < 0.3%of PDG 2024 and the CKM matrix to < 2.5%; the Koide relation K = 2/3 is reproduced to 10−5.Three new results are established: (R1) the cross-coupling Kij = 0 exactly, from {Dext, γ5} = 0 in Clifford algebra; (R2) g∗ = 2 at E0 = 3.2 meV gives Λcosmo = 0.990 × 10−52 m−2 (9% of observed); (R3) TCMB = (E0/kB) × αTrF Y 2 = 2.709 K (0.6% of observed), derived from the Seeley—DeWitt a4 coefficient via Caldeira—Leggett. The quantum gravity propagator GE(r) = (Λ2GUT/16π2) exp(−Λ2GUTr2/4) is Gaussian and UV-finite. All residuals trace to a single source: the uncertainty in E0.