diff --git a/.emacs.d/lisp/init-sly.el b/.emacs.d/lisp/init-sly.el
index 36908a65..39e2df89 100644
--- a/.emacs.d/lisp/init-sly.el
+++ b/.emacs.d/lisp/init-sly.el
@@ -25,8 +25,20 @@ This dump is expected to be generated by `lisp-repl-core-dumper'."
 ;; Warning: ,restart-lisp does not take changes into account, the buffer must be re-created.
 ;; TODO: SLY: Add pre-inst-env SBCL, maybe ask for packages?
 (setq sly-lisp-implementations
-      (let ((maybe-core-dumper (when-let ((exec (executable-find "lisp-repl-core-dumper")))
-                                 (list exec))))
+      (let* ((maybe-core-dumper (when-let ((exec (executable-find "lisp-repl-core-dumper")))
+                                  (list exec)))
+             ;; Support for encrypted files and password manager:
+             (nyxt-ad-hoc-deps '("password-store" "gnupg"))
+             (nyxt-command `("guix" "environment" "--pure"
+                             "--preserve=^PERSONAL$" ; To find personal config, like engines and bookmarks.
+                             "-l" ,(expand-file-name "~/common-lisp/nyxt/build-scripts/guix.scm")
+                             ;; glib is needed to export GIO_EXTRA_MODULES.
+                             "--ad-hoc" "glib"
+                             ;; Not necessary?
+                             "glib-networking" "gsettings-desktop-schemas"
+                             ,@nyxt-ad-hoc-deps
+                             ;; "--" "sbcl"
+                             )))
         ;; TODO: Shouldn't lisp-repl-core-dumper include sb-sprof?  Should SBCL
         ;; packages remain loadable?
         `((sbcl-ambrevar ("lisp-repl-core-dumper" "-g" "--non-interactive"
@@ -35,67 +47,23 @@ This dump is expected to be generated by `lisp-repl-core-dumper'."
                           "--eval" "(named-readtables:in-readtable ambrevar/syntax:syntax)"))
           (sbcl (,@maybe-core-dumper "sbcl"))
           (sbcl-failsafe ("sbcl"))
-          (sbcl-nyxt (lambda () (nyxt-make-guix-sbcl-for-nyxt "~/projects/nyxt" :preserve '("PERSONAL"))))
-          (sbcl-nyxt-pre-inst-env
-           (,(expand-file-name "~/projects/guix/pre-inst-env")
-            "guix" "environment" "-l"
-            ,(expand-file-name "~/common-lisp/nyxt/build-scripts/guix.scm")
-            ;; ,(format "--root=%s" (expand-file-name "~/.guix-temp-profiles/nyxt-pre-inst-env/nyxt-pre-inst-env"))
-            "--ad-hoc" "glib" "glib-networking" "gsettings-desktop-schemas"
-            "--" "sbcl"))
+          (sbcl-nyxt (lambda ()
+                       (nyxt-make-guix-sbcl-for-nyxt "~/projects/nyxt"
+                                                     :preserve '("PERSONAL")
+                                                     :ad-hoc ',nyxt-ad-hoc-deps)))
+          (sbcl-nyxt-force (lambda ()
+                             (nyxt-make-guix-sbcl-for-nyxt "~/projects/nyxt"
+                                                           :preserve '("PERSONAL")
+                                                           :ad-hoc ',nyxt-ad-hoc-deps
+                                                           :force t)))
+          (sbcl-nyxt-pre-inst-env ,(append
+                                    (list (expand-file-name "~/projects/guix/pre-inst-env"))
+                                    nyxt-command
+                                    '("--" "sbcl")))
           ;; Simple REPL environment for Nyxt, in case sbcl-nyxt does not work.
-          (sbcl-nyxt-failsafe ("guix" "environment" "--pure"
-                               "--preserve=^PERSONAL$" ; To find personal config, like engines and bookmarks.
-                               "-l" ,(expand-file-name "~/common-lisp/nyxt/build-scripts/guix.scm")
-                               ;; glib is needed to export GIO_EXTRA_MODULES.
-                               "--ad-hoc" "glib" "glib-networking" "gsettings-desktop-schemas"
-                               "gnupg" "--" "sbcl"))
-          (ccl-nyxt ("guix" "environment" "--pure" ; TODO: Convert Nyxt definition inputs?
-                     "--preserve=^PERSONAL$" ; To find personal config, like engines and bookmarks.
-                     ;; glib is needed to export GIO_EXTRA_MODULES.
-                     "--ad-hoc" "ccl" "gnupg" "glib" "glib-networking" "gsettings-desktop-schemas"
-                     "gcc-toolchain"    ; For CFFI compilation
-                     "cl-alexandria"
-                     "cl-bordeaux-threads"
-                     "cl-calispel"
-                     "cl-chanl"
-                     "cl-containers"
-                     "cl-css"
-                     "cl-custom-hash-table"
-                     "cl-json"
-                     "cl-markup"
-                     "cl-ppcre"
-                     "cl-prevalence"
-                     "cl-closer-mop"
-                     "cl-cluffer"
-                     "cl-dexador"
-                     "cl-enchant"
-                     "cl-fset"
-                     "cl-hu.dwim.defclass-star"
-                     "cl-iolib"
-                     "cl-local-time"
-                     "cl-log4cl"
-                     "cl-mk-string-metrics"
-                     "cl-moptilities"
-                     "cl-named-readtables"
-                     "cl-osicat"
-                     "cl-parenscript"
-                     "cl-plump"
-                     "cl-quri"
-                     "cl-serapeum"
-                     "cl-str"
-                     "cl-slime-swank"
-                     "cl-trivia"
-                     "cl-trivial-clipboard"
-                     "cl-trivial-features"
-                     "cl-trivial-package-local-nicknames"
-                     "cl-trivial-types"
-                     "cl-unix-opts"
-                     "cl-usocket"
-                     "cl-cffi-gtk"
-                     "cl-webkit"
-                     "cl-gobject-introspection"
-                     "--" "ccl"))
+          (sbcl-nyxt-failsafe ,(append nyxt-command '("--" "sbcl")))
+          (ccl-nyxt ,(append nyxt-command '("ccl" "cl-osicat" ; Osicat is required by non-SBCL compilers.
+                                            "--" "ccl")))
           (sbcl-nyxt-site ("guix" "environment" "--pure"
                            "-m" ,(expand-file-name "~/common-lisp/nyxt-site/guix-manifest.scm")
                            "--" "sbcl"))