diff --git a/.github/workflows/tests-and-checks.yml b/.github/workflows/tests-and-checks.yml
index 6fac330..6ac635d 100644
--- a/.github/workflows/tests-and-checks.yml
+++ b/.github/workflows/tests-and-checks.yml
@@ -44,4 +44,4 @@ jobs:
           restore-keys: cljdeps-
 
       - name: Run Clojure tests
-        run: bb run test
+        run: bb run test :all :project
diff --git a/bases/test-runner/deps.edn b/bases/test-runner/deps.edn
index d024f77..15f8543 100644
--- a/bases/test-runner/deps.edn
+++ b/bases/test-runner/deps.edn
@@ -5,12 +5,10 @@
  ;; those pulled into a workspace when used
  :aliases {:dev {:extra-deps {polylith/clj-poly
                               {:git/url "https://github.com/polyfy/polylith"
-                               :git/tag "v0.2.18"
-                               :git/sha "e8feb79"
+                               :git/sha "aece34ab40255fd40038abbff79433fdf7cd5759"
                                :deps/root "projects/poly"}}}
            :test {:extra-paths []
                   :extra-deps {polylith/clj-poly
                                {:git/url "https://github.com/polyfy/polylith"
-                                :git/tag "v0.2.18"
-                                :git/sha "e8feb79"
+                                :git/sha "aece34ab40255fd40038abbff79433fdf7cd5759"
                                 :deps/root "projects/poly"}}}}}
diff --git a/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/bricks_to_test.clj b/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/bricks_to_test.clj
index 6bacfca..59a8270 100644
--- a/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/bricks_to_test.clj
+++ b/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/bricks_to_test.clj
@@ -1,84 +1,68 @@
 (ns polylith-kaocha.kaocha-test-runner.bricks-to-test
   "Copied from polylith.clj.core.change.bricks-to-test, so it doesn't filter out bricks that don't have dedicated test sources."
-  (:require [clojure.set :as set]))
+  (:require
+    [clojure.set :as set]
+    [polylith.clj.core.common.interface :as common]))
 
-(defn bricks-to-test-for-project [{:keys [is-dev alias name base-names component-names]}
-                                  settings
-                                  changed-projects
-                                  changed-components
-                                  changed-bases
-                                  project-to-indirect-changes
-                                  selected-bricks
-                                  selected-projects
-                                  is-dev-user-input
-                                  is-run-all-brick-tests]
+(defn bricks-to-test-
+  "Copied from polylith.
+
+  At commit https://github.com/polyfy/polylith/blob/00579eefcaaa853ede3275e1c6a3395c1f37710b/components/change/src/polylith/clj/core/change/bricks_to_test.clj#L5
+
+  Change indicated inline."
+  [{:keys [is-dev alias name test base-names component-names indirect-changes]}
+   source
+   changed-projects
+   changed-bricks
+   selected-bricks
+   selected-projects
+   is-dev-user-input
+   is-run-all-brick-tests]
   (let [include-project? (or (or (contains? selected-projects name)
                                (contains? selected-projects alias))
                            (and (empty? selected-projects)
                              (or (not is-dev)
                                is-dev-user-input)))
         project-has-changed? (contains? (set changed-projects) name)
-
-
-        ;;
-        ;; HERE IS THE CHANGE PART 1
-        ;;
-        ;; all-brick-names (into #{} (mapcat :test) [base-names component-names])
-        ;;
-        all-brick-names (into #{} (comp (mapcat vals) cat) [base-names component-names])
-        ;;
-        ;;
-        ;; END OF CHANGE PART 1
-        ;;
-
-
-
-        ;; If the :test key is given for a project in workspace.edn, then only include
-        ;; the specified bricks, otherwise, run tests for all bricks that have tests.
-        included-bricks (if-let [bricks (get-in settings [:projects name :test :include])]
-                          (set/intersection all-brick-names (set bricks))
-                          all-brick-names)
+        ;; change
+        ;; we need to consider all referenced bricks as Kaocha might discover tests in src-only bricks too
+        bricks-for-source (into #{} (comp (mapcat vals) cat) [base-names component-names])
+        ;; end change
+        included-bricks (common/brick-names-to-test test bricks-for-source)
         selected-bricks (if selected-bricks
                           (set selected-bricks)
-                          all-brick-names)
+                          bricks-for-source)
         changed-bricks (if include-project?
                          (if (or is-run-all-brick-tests project-has-changed?)
-                           ;; if we pass in :all or :all-bricks or if the project has changed
-                           ;; then always run all brick tests.
                            included-bricks
                            (set/intersection included-bricks
                              selected-bricks
                              (into #{} cat
-                               [changed-components
-                                changed-bases
-                                (-> name project-to-indirect-changes :src)
-                                (-> name project-to-indirect-changes :test)])))
-                         #{})
-        ;; And finally, if brick:BRICK is given, also filter on that, which means that if we
-        ;; pass in both brick:BRICK and :all, we will run the tests for all these bricks,
-        ;; whether they have changed or not (directly or indirectly).
-        bricks-to-test (set/intersection changed-bricks selected-bricks)]
-
+                               [changed-bricks (source indirect-changes)])))
+                         #{})]
+    (set/intersection changed-bricks selected-bricks)))
 
-    ;;
-    ;; HERE IS THE CHANGE PART 2
-    ;;
-    ;; WE ONLY NEED A SET THAT REPRESENTS THE PROJECT'S BRICKS TO TEST
-    ;;
-    bricks-to-test
-    ;;
-    ;; END OF CHANGE PART 2
-    ;;
-    ))
+(defn ensure-at-least-0-2-19
+  "The function bricks-to-test- operates on >=0.2.19-snapshot data so older projects need to be patched."
+  [project settings]
+  (cond-> project
+    (not (contains? project :test))
+    (assoc :test (get-in settings [:projects (:name project) :test]))))
 
 (defn bricks-to-test
+  "Copied from polylith.
+
+  At commit https://github.com/polyfy/polylith/blob/00579eefcaaa853ede3275e1c6a3395c1f37710b/components/change/src/polylith/clj/core/change/bricks_to_test.clj#L49
+
+  Changes:
+  - not associng into project just returning
+  - less lazy"
   [project {:keys [changes settings user-input] :as _workspace}]
-  (let [{:keys [is-dev is-run-all-brick-tests selected-bricks selected-projects]} user-input
-        {:keys [changed-components
-                changed-bases
-                changed-projects
-                project-to-indirect-changes]} changes]
-    (bricks-to-test-for-project
-      project settings changed-projects changed-components changed-bases
-      project-to-indirect-changes selected-bricks selected-projects is-dev
-      is-run-all-brick-tests)))
+  (let [project (ensure-at-least-0-2-19 project settings)
+        {:keys [is-dev is-run-all-brick-tests selected-bricks selected-projects]} user-input
+        {:keys [changed-components changed-bases changed-projects]} changes]
+    (-> #{}
+      (into (bricks-to-test- project :src changed-projects changed-bases selected-bricks selected-projects is-dev is-run-all-brick-tests))
+      (into (bricks-to-test- project :src changed-projects changed-components selected-bricks selected-projects is-dev is-run-all-brick-tests))
+      (into (bricks-to-test- project :test changed-projects changed-bases selected-bricks selected-projects is-dev is-run-all-brick-tests))
+      (into (bricks-to-test- project :test changed-projects changed-components selected-bricks selected-projects is-dev is-run-all-brick-tests)))))
diff --git a/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/core.clj b/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/core.clj
index 673adb9..c4e72a5 100644
--- a/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/core.clj
+++ b/components/kaocha-test-runner/src/polylith_kaocha/kaocha_test_runner/core.clj
@@ -40,11 +40,16 @@
               "is NOT considered for Kaocha's test discovery")
           (->> (verbose-println runner-opts "Path" path)))))))
 
+(defn project-to-test-0-2-19
+  [{:keys [name projects-to-test] :as _project}
+   {:keys [project-to-projects-to-test] :as _changes}]
+  (or projects-to-test ;; poly version > 0.2.18
+    (project-to-projects-to-test name) ;; poly version up to 0.2.18
+    ))
+
 (defn path-of-project-to-test?-fn
   [{:keys [project changes] :as _runner-opts}]
-  (let [{:keys [name]} project
-        {:keys [project-to-projects-to-test]} changes
-        projects-to-test (set (project-to-projects-to-test name))]
+  (let [projects-to-test (set (project-to-test-0-2-19 project changes))]
     (fn path-of-project-to-test? [path]
       (->> path
         (re-find #"^projects/([^/]+)")
diff --git a/components/kaocha-test-runner/test/polylith_kaocha/kaocha_test_runner/bricks_to_test_test.clj b/components/kaocha-test-runner/test/polylith_kaocha/kaocha_test_runner/bricks_to_test_test.clj
new file mode 100644
index 0000000..81b1c45
--- /dev/null
+++ b/components/kaocha-test-runner/test/polylith_kaocha/kaocha_test_runner/bricks_to_test_test.clj
@@ -0,0 +1,150 @@
+(ns polylith-kaocha.kaocha-test-runner.bricks-to-test-test
+  (:require
+    [clojure.test :refer :all]
+    [polylith-kaocha.kaocha-test-runner.bricks-to-test :as sut]))
+
+(deftest
+  ^{:doc "Regression test.
+  Extracted from a run of `clojure -Srepro -M:poly test` at https://github.com/imrekoszo/polylith-kaocha-issue-repro/tree/f16f3a4e58d61c3e916bada6736fafbb1d45cff7"}
+  bricks-to-test-test
+  (let [args-0-2-18
+        [{:base-names {:src ["d"], :test ["d"]},
+          :is-dev false,
+          :name "p",
+          :type "project",
+          :alias "p",
+          :component-names {:src ["a" "b" "c" "s"], :test ["a" "b" "c"]},
+          :deps {"d" {:src {:direct ["a" "b" "c" "s"]}, :test {:direct ["a" "b" "c" "s"]}},
+                 "a" {:src {:direct ["b"]}, :test {:direct ["b"]}},
+                 "b" {:src {}, :test {}},
+                 "c" {:src {}, :test {}},
+                 "s" {:src {}, :test {}}}}
+         {:user-input {:is-dev false, :is-run-all-brick-tests false, :selected-projects #{}},
+          :settings {:projects {"development" {:alias "dev", :test #:polylith-kaocha{:config-resource "tests.edn"}},
+                                "p" {:alias "p", :test #:polylith-kaocha{:config-resource "tests.edn"}},
+                                "r" {:alias "r", :test #:polylith-kaocha{:config-resource "tests.edn"}}}},
+          :changes {:changed-components ["a" "s"],
+                    :changed-bases [],
+                    :changed-projects ["development" "p" "r"],
+                    :project-to-indirect-changes {"p" {:src ["d"], :test ["d"]},
+                                                  "r" {:src [], :test []},
+                                                  "development" {:src ["d"], :test ["d"]}}}}]
+
+        args-0-2-19
+        [{:base-names {:src ["d"], :test ["d"]},
+          :is-dev false,
+          :name "p",
+          :indirect-changes {:src ["d"], :test ["d"]},
+          :alias "p",
+          :projects-to-test [],
+          :component-names {:src ["a" "b" "c" "s"], :test ["a" "b" "c"]},
+          :test #:polylith-kaocha{:config-resource "tests.edn"},
+          :bricks-to-test ["a" "b" "c" "d"],}
+         {:projects [{:base-names {:src ["d"], :test ["d"]},
+                      :is-dev false,
+                      :name "p",
+                      :type "project",
+                      :indirect-changes {:src ["d"], :test ["d"]},
+                      :alias "p",
+                      :projects-to-test [],
+                      :component-names {:src ["a" "b" "c" "s"], :test ["a" "b" "c"]},
+                      :test #:polylith-kaocha{:config-resource "tests.edn"},
+                      :bricks-to-test ["a" "b" "c" "d"],}
+                     {:base-names {},
+                      :is-dev false,
+                      :name "r",
+                      :type "project",
+                      :indirect-changes {:src [], :test []},
+                      :alias "r",
+                      :projects-to-test [],
+                      :component-names {:src ["c"], :test ["c"]},
+                      :test #:polylith-kaocha{:config-resource "tests.edn"},
+                      :bricks-to-test ["c"]}
+                     {:base-names {:src ["d"], :test ["d"]},
+                      :is-dev true,
+                      :name "development",
+                      :type "project",
+                      :indirect-changes {:src ["d"], :test ["d"]},
+                      :alias "dev",
+                      :projects-to-test [],
+                      :component-names {:src ["a" "b" "c" "s"], :test ["a" "b" "c"]},
+                      :test #:polylith-kaocha{:config-resource "tests.edn"},
+                      :bricks-to-test []}],
+          :user-input {:args ["test"],
+                       :unnamed-args [],
+                       :is-dev false,
+                       :is-commit false,
+                       :is-run-project-tests false,
+                       :is-compact false,
+                       :is-run-all-brick-tests false,
+                       :is-fake-poly false,
+                       :is-verbose false,
+                       :is-latest-sha false,
+                       :selected-projects #{},
+                       :is-update false,
+                       :is-github false,
+                       :is-no-changes false,
+                       :is-search-for-ws-dir false,
+                       :is-swap-axes false,
+                       :is-outdated false,
+                       :is-local false,
+                       :is-show-brick false,
+                       :is-show-resources false,
+                       :selected-profiles #{},
+                       :cmd "test",
+                       :is-show-project false,
+                       :is-all false,
+                       :is-show-workspace false,
+                       :is-tap false,
+                       :is-show-loc false,
+                       :is-no-exit false},
+          :settings {:top-namespace "fun",
+                     :default-profile-name "default",
+                     :thousand-separator ",",
+                     :compact-views #{},
+                     :active-profiles #{},
+                     :interface-ns "interface",
+                     :tag-patterns {:stable "stable-*", :release "v[0-9]*"},
+                     :color-mode "dark",
+                     :empty-character "."},
+          :ws-type "toolsdeps2",
+          :changes {:since "stable",
+                    :changed-projects ["development" "p" "r"],
+                    :changed-bases [],
+                    :since-sha "46bcf2c0c7eebfc54c074d43290a81d14d2da614",
+                    :changed-files [".gitignore"
+                                    "components/a/src/fun/a/interface.clj"
+                                    "components/s/src/fun/s/interface.clj"
+                                    "deps.edn"
+                                    "development/config.edn"
+                                    "projects/p/config.edn"
+                                    "projects/p/deps.edn"
+                                    "projects/r/config.edn"
+                                    "projects/r/deps.edn"
+                                    "workspace.edn"],
+                    :git-diff-command "git diff 46bcf2c0c7eebfc54c074d43290a81d14d2da614 --name-only",
+                    :changed-components ["a" "s"],
+                    :since-tag "stable-3",
+                    :changed-or-affected-projects ["development" "p" "r"]},
+          :profiles []}]]
+    (testing "bricks that do not have test files are also selected"
+      (let [expected #{"d" "s" "a" "b" "c"}]
+
+        (testing "up to poly v0.2.18"
+          (is (= expected (apply sut/bricks-to-test args-0-2-18))))
+
+        (testing "from poly v0.2.19"
+          (is (= expected (apply sut/bricks-to-test args-0-2-19))))))
+
+    (testing "include bricks"
+      (let [expected #{"b" "c"}]
+
+        (testing "up to poly v0.2.18"
+          (let [with-include #(assoc-in % [1 :settings :projects "p" :test :include] ["b" "c"])]
+            (is (= expected
+                  (apply sut/bricks-to-test (with-include args-0-2-18))))))
+
+        (testing "from poly v0.2.19"
+          (let [with-include #(assoc-in % [0 :test :include] ["b" "c"])]
+            (is (= expected
+                  (apply sut/bricks-to-test (with-include args-0-2-19))))))))))
diff --git a/deps.edn b/deps.edn
index 78c7582..0a9342a 100644
--- a/deps.edn
+++ b/deps.edn
@@ -1,15 +1,5 @@
 {:aliases
- {:dev {:extra-paths ["development/src"
-
-                      ;; poly modules workaround for Cursive, https://github.com/cursive-ide/cursive/issues/2554
-                      "bases/example/src"
-                      "bases/test-runner/src"
-                      "components/kaocha-resource-config-loader/resources"
-                      "components/kaocha-resource-config-loader/src"
-                      "components/kaocha-test-runner/src"
-                      "components/kaocha-wrapper/resources"
-                      "components/kaocha-wrapper/src"
-                      "components/util/src"]
+ {:dev {:extra-paths ["development/src"]
         :extra-deps {org.clojure/clojure {:mvn/version "1.11.1"}
 
                      ;; poly modules
@@ -35,8 +25,7 @@
          :extra-paths ["development/poly"]
          :extra-deps {polylith/clj-poly
                       {:git/url "https://github.com/polyfy/polylith"
-                       :git/tag "v0.2.18"
-                       :git/sha "e8feb79"
+                       :git/sha "aece34ab40255fd40038abbff79433fdf7cd5759"
                        :deps/root "projects/poly"}
 
                       polylith-kaocha/test-runner
diff --git a/development/config.edn b/development/config.edn
new file mode 100644
index 0000000..8643092
--- /dev/null
+++ b/development/config.edn
@@ -0,0 +1 @@
+{:alias "dev"}
diff --git a/projects/example/config.edn b/projects/example/config.edn
new file mode 100644
index 0000000..344ba46
--- /dev/null
+++ b/projects/example/config.edn
@@ -0,0 +1,10 @@
+{:alias "ex"
+ :test {;; must be available on the project's classpath
+        :polylith-kaocha/config-resource "polylith-kaocha/example/tests.edn"
+        :polylith-kaocha.kaocha-wrapper/post-load-config polylith-kaocha.example.hooks/post-load-config
+        :polylith-kaocha.kaocha-wrapper/post-enhance-config polylith-kaocha.example.hooks/post-enhance-config
+        :polylith-kaocha/tests-present? polylith-kaocha.example.hooks/tests-present?
+        :polylith-kaocha/run-tests polylith-kaocha.example.hooks/run-tests
+
+        ;; must be available on the poly tool's classpath
+        :polylith-kaocha/runner-opts->kaocha-poly-opts polylith-kaocha.hooks/runner-opts->kaocha-poly-opts}}
diff --git a/projects/kaocha-wrapper/config.edn b/projects/kaocha-wrapper/config.edn
new file mode 100644
index 0000000..8df404d
--- /dev/null
+++ b/projects/kaocha-wrapper/config.edn
@@ -0,0 +1 @@
+{:alias "kw"}
diff --git a/projects/test-runner/config.edn b/projects/test-runner/config.edn
new file mode 100644
index 0000000..8829892
--- /dev/null
+++ b/projects/test-runner/config.edn
@@ -0,0 +1 @@
+{:alias "tr"}
diff --git a/readme.md b/readme.md
index 27002e1..e8c7b5d 100644
--- a/readme.md
+++ b/readme.md
@@ -24,7 +24,7 @@ Alpha software. While breaking changes are not planned at this point, they shoul
 
 ## Usage
 
-For deps coordinates, see the [Releases](https://github.com/imrekoszo/polylith-kaocha/releases) page.
+For deps coordinates, see the [Releases](https://github.com/imrekoszo/polylith-kaocha/releases) page. This section assumes that at least `v0.2.19-SNAPSHOT (aece34ab40255fd40038abbff79433fdf7cd5759)` of the poly tool is used. To set polylith-kaocha up with an older version of the poly tool, please see the docs at `v0.8.3` of polylith-kaocha.
 
 ### 1. Add dep to :poly alias
 
@@ -40,8 +40,7 @@ includes [pluggable test runner support](https://github.com/polyfy/polylith/pull
   {:extra-deps
    {polylith/clj-poly
     {:git/url "https://github.com/polyfy/polylith"
-     :git/tag "v0.2.18"
-     :git/sha "e8feb79"
+     :git/sha "aece34ab40255fd40038abbff79433fdf7cd5759"
      :deps/root "projects/poly"}
 
     polylith-kaocha/test-runner
@@ -53,29 +52,28 @@ includes [pluggable test runner support](https://github.com/polyfy/polylith/pull
  }
 ```
 
-### 2. Reference in workspace config
+### 2. Reference in workspace/project config
 
 After which you can configure your projects to be tested with it
-in `workspace.edn`:
+in `workspace.edn` and/or individual project `config.edn`-s:
 
 ```clojure
-{
+;; To use it as the default test runner in the workspace
+;;
+;; In workspace.edn:
+{:test {:create-test-runner polylith-kaocha.test-runner/create}}
 
- ;; To use it as the default test runner in the workspace
- :test {:create-test-runner polylith-kaocha.test-runner/create}
 
- :projects
- {
-  ;; To only use it for specific projects
-  "foo" {:test {:create-test-runner polylith-kaocha.test-runner/create}}
+;; In project config.edn files:
 
-  ;; To revert to the default test runner only for specific projects
-  "bar" {:test {:create-test-runner :default}}
+;; To only use it for specific projects
+{:test {:create-test-runner polylith-kaocha.test-runner/create}}
 
-  ;; To use it in addition to the default test runner
-  "baz" {:test {:create-test-runner [:default polylith-kaocha.test-runner/create]}}
-  }
- }
+;; To revert to the default test runner only for specific projects
+{:test {:create-test-runner :default}}
+
+;; To use it in addition to the default test runner
+{:test {:create-test-runner [:default polylith-kaocha.test-runner/create]}}
 ```
 
 ### 3. Add kaocha wrapper dep to affected projects
@@ -124,17 +122,14 @@ Out of the box this applies the default Kaocha configuration which at this time
 is to run `clojure.test` tests. There are a few options to change this.
 
 All the following settings can either be applied to the entire workspace, or
-specific projects by adding them to `workspace.edn`:
+specific projects by adding them to configuration:
 
 ```clojure
-{
- :test {;; here to apply them to the entire workspace
-        }
+;; In workspace.edn to make them apply to the entire workspace
+;; In project config.edn files to apply them to specific projects
 
- :projects
- {"foo" {:test {;; here to apply to specific projects
-                }}}
- }
+{:test {;; here
+        }}
 ```
 
 #### Kaocha configuration
diff --git a/workspace.edn b/workspace.edn
index 336c188..a59b5fc 100644
--- a/workspace.edn
+++ b/workspace.edn
@@ -8,24 +8,4 @@
                 :release "v[0-9]*"}
  :test {:create-test-runner [:default
                              polylith-kaocha.test-runner/create
-                             #_polylith-kaocha.reload-runner/create]}
- :projects {"development"
-            {:alias "dev"}
-
-            "example"
-            {:alias "ex"
-             :test {;; must be available on the project's classpath
-                    :polylith-kaocha/config-resource "polylith-kaocha/example/tests.edn"
-                    :polylith-kaocha.kaocha-wrapper/post-load-config polylith-kaocha.example.hooks/post-load-config
-                    :polylith-kaocha.kaocha-wrapper/post-enhance-config polylith-kaocha.example.hooks/post-enhance-config
-                    :polylith-kaocha/tests-present? polylith-kaocha.example.hooks/tests-present?
-                    :polylith-kaocha/run-tests polylith-kaocha.example.hooks/run-tests
-
-                    ;; must be available on the poly tool's classpath
-                    :polylith-kaocha/runner-opts->kaocha-poly-opts polylith-kaocha.hooks/runner-opts->kaocha-poly-opts}}
-
-            "kaocha-wrapper"
-            {:alias "kw"}
-
-            "test-runner"
-            {:alias "tr"}}}
+                             #_polylith-kaocha.reload-runner/create]}}