diff --git a/.github/workflows/tests_babashka.yml b/.github/workflows/tests_babashka.yml
new file mode 100644
index 0000000..4aa7d4d
--- /dev/null
+++ b/.github/workflows/tests_babashka.yml
@@ -0,0 +1,23 @@
+name: Babashka
+on: [push, pull_request]
+jobs:
+  babashka:
+    runs-on: [ubuntu-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Prepare java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Install clojure tools
+        uses: DeLaGuardo/setup-clojure@10.1
+        with:
+          cli: 1.10.1.727
+          bb: latest
+
+      - name: Run tests
+        run: bb test:bb
+
diff --git a/bb.edn b/bb.edn
new file mode 100644
index 0000000..b8402f1
--- /dev/null
+++ b/bb.edn
@@ -0,0 +1,4 @@
+{:paths ["bb" "src"]
+ :tasks {test:bb {:extra-paths ["test"]
+                  :extra-deps {nubank/matcher-combinators {:mvn/version "3.5.1"}}
+                  :task (exec 'runner/run-tests)}}}
diff --git a/bb/runner.clj b/bb/runner.clj
new file mode 100644
index 0000000..856a835
--- /dev/null
+++ b/bb/runner.clj
@@ -0,0 +1,19 @@
+(ns runner
+  (:require
+   [clojure.test :as test]
+   [hyperfiddle.rcf :as rcf]))
+
+(defn run-tests [_]
+  (alter-var-root (var rcf/*generate-tests*) (constantly true))
+  (let [test-nses '[hyperfiddle.rcf-test
+                    hyperfiddle.rcf.analyzer-test
+                    ;; needs missionary, doesn't work due to missing reactive streams Java lib:
+                    #_hyperfiddle.rcf.unify-test
+                    ;; needs missionary:
+                    #_hyperfiddle.rcf.example-test
+                    ]]
+    (apply require test-nses)
+    (let [{:keys [fail error]}
+          (apply test/run-tests test-nses)]
+      (when (and fail error (pos? (+ fail error)))
+        (throw (ex-info "Tests failed" {:babasha/exit 1}))))))
diff --git a/src/hyperfiddle/rcf/analyzer.clj b/src/hyperfiddle/rcf/analyzer.clj
index 96766a6..1c4df30 100644
--- a/src/hyperfiddle/rcf/analyzer.clj
+++ b/src/hyperfiddle/rcf/analyzer.clj
@@ -425,6 +425,8 @@
   [m f]
   (reduce-kv (fn [m k v] (assoc m k (f v))) {} (or m {})))
 
+(defmacro if-bb [then else] (if (System/getProperty "babashka.version") then else))
+
 (defn create-var
   "Creates a Var for sym and returns it.
    The Var gets interned in the env namespace."
@@ -433,9 +435,10 @@
     (if (some? v)
       (cond
         (class? v) v
-        (and (var? v) (= ns (ns-name (.ns ^clojure.lang.Var v)))) (do (when-some [m (meta sym)] 
-                                                                        (.setMeta v (update-vals m unquote')))
-                                                                      v)
+        (and (var? v) (= ns (ns-name (if-bb (:ns (meta v)) (.ns ^clojure.lang.Var v)))))
+        (do (when-some [m (meta sym)]
+              (if-bb (alter-meta! v (constantly (update-vals m unquote')))
+                (.setMeta v (update-vals m unquote')))) v)
         :else (throw (ex-info (str "(def " sym " ...) resolved to an existing mapping of an unexpected type.")
                               {:sym         sym
                                :ns          ns