Sorry for responding late, but I don't think Termux includes SBCL - at least it doesn't on my android devices. But it does include ECL (Embeddable Common Lisp).

Sorry for responding late, but I don't think Termux includes SBCL - at least it doesn't on my android devices. But it does include ECL (Embeddable Common Lisp). Apparently, you can compile SBCL using ECL, so if you really want SBCL itself instead of just a Common Lisp implementation, that might be a path to it.