The realization space is
  [1   1   x1 - 1   0   0   1   x1    1   x1^2 - x1    1    1]
  [1   0       x1   1   0   1   x1    0        x1^2   x1   x1]
  [0   0        0   0   1   1    1   x1      x1 - 1   x1    1]
in the multivariate polynomial ring in 1 variable over ZZ
within the vanishing set of the ideal
Ideal (-x1^8 + 7*x1^7 - 22*x1^6 + 41*x1^5 - 48*x1^4 + 34*x1^3 - 13*x1^2 + 2*x1)
avoiding the zero loci of the polynomials
RingElem[x1 - 1, x1, x1 - 2, x1^2 - 3*x1 + 1, x1^2 - x1 - 1, x1^2 - x1 + 1, 2*x1 - 1, x1 + 1, 2, x1^2 + x1 - 1]