Any code that was previously (directly) available at this link is now on my GitHub page: https://github.com/michaud-jacobsLink opens in a new window.

Links to the specific repositories:

1. Quadratic points on $X_0(163)$, codeLink opens in a new window.
2. Computing quadratic points on modular curves $X_0(N)$, codeLink opens in a new window (forked hereLink opens in a new window).
3. Computing points on bielliptic modular curves over fixed quadratic fields, codeLink opens in a new window.
4. On elliptic curves with $p$-isogenies over quadratic fields, codeLink opens in a new window.
5. $\mathbb{Q}$-curves and the Lebesgue–Nagell equation, codeLink opens in a new window.
6. On power values of pyramidal numbers, II, codeLink opens in a new window.
7. On some generalized Fermat equations of the form $x^2 + y^{2n} = z^p$, codeLink opens in a new window.
8. Fermat's Last Theorem and modular curves over real quadratic fields, codeLink opens in a new window.
9. Quadratic points on non-split Cartan modular curves, codeLink opens in a new window.