feat(home): add sshfs

modules/home.nix

@@ -192,6 +192,10 @@ in
     unzip       # extract .zip (tools that shell out to it expect the binary)
     jq          # JSON on the command line (scripts, ad-hoc inspection)
     pv          # pipe progress meter (throughput, ETA on streamed data)
+    sshfs       # mount a remote dir over SFTP; a FUSE filesystem separate from
+                # OpenSSH that drives the `ssh` binary. fusermount3 comes from
+                # the NixOS setuid wrapper, so no extra system config is needed
+                # unless a mount wants `allow_other`.
     git-filter-repo  # `git filter-repo`: history rewriting (upstream's replacement
                      # for `git filter-branch`); a standalone script git picks
                      # up as a subcommand, so programs.git needs no config