diff --git a/cl-jupyter.lisp b/cl-jupyter.lisp
index 4066ac5..46eaf1e 100644
--- a/cl-jupyter.lisp
+++ b/cl-jupyter.lisp
@@ -1,7 +1,11 @@
+
+
+
 ;; not yet installed in quicklisp directory
 (push (truename (format nil "~Asrc/" (directory-namestring *load-truename*)))
       asdf:*central-registry*)
 
+#-ros.init
 (let ((cmd-args
        ;; Borrowed from apply-argv, command-line-arguments.  Temporary solution (?)
        ;; This is not PvE's code.
@@ -47,5 +51,9 @@
 (in-package #:cl-jupyter-user)
 
 ;; start main loop
+#-ros.init
 (cl-jupyter:kernel-start)
 
+#+ros.init
+(defun main (&rest argv)
+  (cl-jupyter:kernel-start argv))
diff --git a/install-cl-jupyter.py b/install-cl-jupyter.py
index ba55f33..ea1bd62 100644
--- a/install-cl-jupyter.py
+++ b/install-cl-jupyter.py
@@ -199,6 +199,58 @@ def process_command_line(argv):
             raise RequirementException(message)
 
     print("... Kernel: using {}".format(sbcl_version_string))
+elif config.lisp_implementation == "roswell":
+    if not config.lisp_executable:
+        config.lisp_executable = 'ros'
+    try:
+
+        sbcl_version_string = subprocess.check_output([config.lisp_executable, "-L", "sbcl-bin", "run", "--", "--version"]).decode()
+    except FileNotFoundError:
+        halt("Error: Lisp executable '{0}' not in PATH".format (config.lisp_executable))
+    except subprocess.CalledProcessError as e:
+        halt("Error: {} from SBCL".format(e))
+
+    print("sbcl reports version {}".format(sbcl_version_string))
+
+    import re
+    try:
+        regexp = re.compile(r'(\d+)\.(\d+)\.(\d+)')
+        version = regexp.findall(sbcl_version_string)[0]
+    except IndexError:
+        halt("Error: issue with sbcl version string (please report)")
+
+    config.sbcl_version = map(int, version)
+
+    sbcl_min_version = (1, 2, 0)
+    for have, need in zip(config.sbcl_version, sbcl_min_version):
+        if have < need:
+            message = "found {}; required: sbcl >= {}"
+            message = message.format(config.sbcl_version, sbcl_min_version)
+            raise RequirementException(message)
+
+    print("... Kernel: using {}".format(sbcl_version_string))
+elif config.lisp_implementation == "roswell-ccl":
+    if not config.lisp_executable:
+        config.lisp_executable = 'ros'
+
+    try:
+        ccl_version_string = subprocess.check_output([config.lisp_executable, "-L", "ccl-bin", "run", "--","-V"]).decode()
+    except FileNotFoundError:
+        halt("Error: Lisp executable '{0}' not in PATH".format (config.lisp_executable))
+    except subprocess.CalledProcessError as e:
+        halt("Error: {} from CCL".format(e))
+
+    import re
+    m = re.match(r".*[^0-9](([0-9]+\.)[0-9]+\.[0-9]+)", ccl_version_string)
+    if not m:
+        halt("Error: issue with ccl version string (please report)")
+
+    config.ccl_version = tuple([int(d) for d in m.group(1).split(".")])
+    #print("ccl version = {}".format(config.ccl_version))
+    if config.ccl_version[0] < 1 or config.ccl_version[1] < 10:
+        halt("Error: require CCL v1.10 or above")
+
+    print("... Kernel: using {}".format(ccl_version_string))
 
 elif config.lisp_implementation == "ccl":
     if not config.lisp_executable:
@@ -253,6 +305,26 @@ def process_command_line(argv):
         "display_name": "SBCL Lisp",
         "language": "lisp"
     }
+elif config.lisp_implementation == "roswell":
+    KERNEL_SPEC = {
+        "argv": [
+            config.lisp_executable,
+            '-L', 'sbcl-bin',
+            "{0}/cl-jupyter.lisp".format(config.cl_jupyter_startup_def_dir),
+            '{connection_file}'],
+        "display_name": "roswell",
+        "language": "lisp"
+    }
+elif config.lisp_implementation == "roswell-ccl":
+    KERNEL_SPEC = {
+        "argv": [
+            config.lisp_executable,
+            '-L', 'ccl-bin',
+            "{0}/cl-jupyter.lisp".format(config.cl_jupyter_startup_def_dir),
+            '{connection_file}'],
+        "display_name": "roswell-ccl",
+        "language": "lisp"
+    }
 elif config.lisp_implementation == "ccl":
     KERNEL_SPEC = {
         "argv": [
diff --git a/src/kernel.lisp b/src/kernel.lisp
index e9218be..5799765 100644
--- a/src/kernel.lisp
+++ b/src/kernel.lisp
@@ -84,8 +84,8 @@
    (signature-scheme :initarg :signature-scheme :reader config-signature-scheme :type string)
    (key :initarg :key :reader kernel-config-key)))
 
-(defun kernel-start ()
-  (let ((cmd-args (get-argv)))
+(defun kernel-start (&optional args)
+  (let ((cmd-args (or args (get-argv))))
     ;(princ (banner))
     (write-line "")
     (format t "~A: an enhanced interactive Common Lisp REPL~%" +KERNEL-IMPLEMENTATION-NAME+)