tutorial: Update example outputs in all chapters

...to match the ones produces by latest binaries and rules.

10 files changed, 227 insertions, 190 deletions

diff --git a/doc/tutorial/debugging.md b/doc/tutorial/debugging.md
index ab35e591..cc748983 100644
--- a/doc/tutorial/debugging.md
+++ b/doc/tutorial/debugging.md
@@ -45,8 +45,8 @@ control, we need to commit the changes:
 ``` sh
 $ git add tutorial-defaults
 $ git commit -m "update compile flags for debugging"
-[master baabec7] update compile flags for debugging
- 1 file changed, 21 insertions(+), 2 deletions(-)
+[master 642f739] update compile flags for debugging
+ 1 file changed, 1 insertions(+)
 ```
 
 Now we need to configure the actual target we want to debug. The `TARGETS` file
@@ -86,16 +86,16 @@ Now this target can be installed to a location of our choice provided by the
 ``` sh
 $ just-mr install "helloworld-debug staged" -o .ext/debug
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","install","-C","...","helloworld-debug staged","-o",".ext/debug"]
 INFO: Requested target is [["@","tutorial","","helloworld-debug install"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld-debug install"],{}]
 INFO: Export targets found: 0 cached, 1 uncached, 0 not eligible for caching
-INFO: Discovered 7 actions, 3 trees, 0 blobs
+INFO: Discovered 7 actions, 0 tree overlays, 3 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld-debug install"],{}].
 INFO: Processed 7 actions, 0 cache hits.
 INFO: Artifacts can be found in:
-        /tmp/tutorial/.ext/debug/bin/helloworld [d88cadc156dc3b9b442fc162f7bc92c86b63d5f8:1570432:x]
+        /tmp/tutorial/.ext/debug/bin/helloworld [5f0ce4ed97000af42902c41f9d3b7d51343534a6:1570896:x]
         /tmp/tutorial/.ext/debug/include/fmt [3a5cb60e63f7480b150fdef0883d7a76e8a57a00:464:t]
         /tmp/tutorial/.ext/debug/include/greet/greet.hpp [63815ae1b5a36ab29efa535141fee67f3b7769de:53:f]
         /tmp/tutorial/.ext/debug/work/fmt [3a5cb60e63f7480b150fdef0883d7a76e8a57a00:464:t]
diff --git a/doc/tutorial/getting-started.md b/doc/tutorial/getting-started.md
index a97aea60..7a373aeb 100644
--- a/doc/tutorial/getting-started.md
+++ b/doc/tutorial/getting-started.md
@@ -58,7 +58,7 @@ To build a target, we need to run `just` with the subcommand `build`:
 $ just build greeter
 INFO: Requested target is [["@","","","greeter"],{}]
 INFO: Analysed target [["@","","","greeter"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","greeter"],{}].
 INFO: Processed 1 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -77,7 +77,7 @@ and specify the output directory:
 $ just install greeter -o .
 INFO: Requested target is [["@","","","greeter"],{}]
 INFO: Analysed target [["@","","","greeter"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","greeter"],{}].
 INFO: Processed 1 actions, 1 cache hits.
 INFO: Artifacts can be found in:
@@ -104,7 +104,7 @@ a text file, as well as for piping the artifact to another program.
 $ just build greeter -P out.txt
 INFO: Requested target is [["@","","","greeter"],{}]
 INFO: Analysed target [["@","","","greeter"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","greeter"],{}].
 INFO: Processed 1 actions, 1 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -113,7 +113,7 @@ Hello World
 $ just build -p
 INFO: Requested target is [["@","","","greeter"],{}]
 INFO: Analysed target [["@","","","greeter"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","greeter"],{}].
 INFO: Processed 1 actions, 1 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -178,7 +178,7 @@ As we only request targets, no conflicts arise.
 $ just build upper -p
 INFO: Requested target is [["@","","","upper"],{}]
 INFO: Analysed target [["@","","","upper"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","upper"],{}].
 INFO: Processed 1 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -187,7 +187,7 @@ WORLD
 $ just build greeter -p
 INFO: Requested target is [["@","","","greeter"],{}]
 INFO: Analysed target [["@","","","greeter"],{}]
-INFO: Discovered 1 actions, 0 trees, 0 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","greeter"],{}].
 INFO: Processed 1 actions, 1 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -217,7 +217,7 @@ artifact of that target) as such a mapping is necessarily conflict free.
 $ just build both
 INFO: Requested target is [["@","","","both"],{}]
 INFO: Analysed target [["@","","","both"],{}]
-INFO: Discovered 2 actions, 0 trees, 0 blobs
+INFO: Discovered 2 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","both"],{}].
 INFO: Processed 2 actions, 2 cache hits.
 INFO: Artifacts built, logical paths are:
diff --git a/doc/tutorial/hello-world.md b/doc/tutorial/hello-world.md
index eabcaf49..25645c73 100644
--- a/doc/tutorial/hello-world.md
+++ b/doc/tutorial/hello-world.md
@@ -117,11 +117,11 @@ command line:
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
-INFO: Discovered 2 actions, 1 trees, 0 blobs
+INFO: Discovered 2 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 2 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -166,11 +166,11 @@ object that sets `"CXX"` to `"clang++"`:
 ``` sh
 $ just-mr build helloworld -D'{"CXX":"clang++"}'
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld","-D{\"CXX\":\"clang++\"}"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{"CXX":"clang++"}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{"CXX":"clang++"}]
-INFO: Discovered 2 actions, 1 trees, 0 blobs
+INFO: Discovered 2 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{"CXX":"clang++"}].
 INFO: Processed 2 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -272,11 +272,11 @@ change):
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 3 repositories to set up
+INFO: Found 3 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
-INFO: Discovered 2 actions, 1 trees, 0 blobs
+INFO: Discovered 2 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 2 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -399,11 +399,11 @@ binary can be built with the same command as before (no need to rerun
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 3 repositories to set up
+INFO: Found 3 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -417,11 +417,11 @@ run the following command:
 ``` sh
 $ just-mr build greet greet
 INFO: Performing repositories setup
-INFO: Found 3 repositories to set up
+INFO: Found 3 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","greet","greet"]
 INFO: Requested target is [["@","tutorial","greet","greet"],{}]
 INFO: Analysed target [["@","tutorial","greet","greet"],{}]
-INFO: Discovered 2 actions, 1 trees, 0 blobs
+INFO: Discovered 2 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","tutorial","greet","greet"],{}].
 INFO: Processed 2 actions, 2 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -438,13 +438,13 @@ that library provides.
 ``` sh
 $ just-mr analyse greet greet
 INFO: Performing repositories setup
-INFO: Found 3 repositories to set up
+INFO: Found 3 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","greet","greet"]
 INFO: Requested target is [["@","tutorial","greet","greet"],{}]
 INFO: Analysed target [["@","tutorial","greet","greet"],{}]
 INFO: Result of target [["@","tutorial","greet","greet"],{}]: {
         "artifacts": {
-          "greet/libgreet.a": {"data":{"id":"c4ba32e2fc1ce267b4245d8885ae7b53405d41a709f853061549ca93aa73a6ac","path":"work/greet/libgreet.a"},"type":"ACTION"}
+          "greet/libgreet.a": {"data":{"id":"d964a2747015935adc5fd7f06bbd910d5dde99e990436be0b1f7034270b5b11d","path":"work/greet/libgreet.a"},"type":"ACTION"}
         },
         "provides": {
           "compile-args": [
@@ -455,6 +455,8 @@ INFO: Result of target [["@","tutorial","greet","greet"],{}]: {
           },
           "debug-srcs": {
           },
+          "dwarf-pkg": {
+          },
           "link-args": [
             "greet/libgreet.a"
           ],
diff --git a/doc/tutorial/just-lock.md b/doc/tutorial/just-lock.md
index 538f559e..d5f04fb1 100644
--- a/doc/tutorial/just-lock.md
+++ b/doc/tutorial/just-lock.md
@@ -146,12 +146,12 @@ $ just-lock -C repos.in.json -o repos.out.json
 $
 $ just-mr -C repos.out.json build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 1 cached, 0 uncached, 0 not eligible for caching
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 4 cache hits.
 INFO: Artifacts built, logical paths are:
diff --git a/doc/tutorial/just-serve.md b/doc/tutorial/just-serve.md
index 9ba08758..9c71e39d 100644
--- a/doc/tutorial/just-serve.md
+++ b/doc/tutorial/just-serve.md
@@ -570,13 +570,13 @@ serve endpoint
 ``` sh
 $ just-mr -R localhost:9999 --local-build-root ~/local-build-root build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","--local-build-root","/home/tutorial/local-build-root","-R","127.0.0.1:9999","helloworld"]
 INFO: Using '127.0.0.1:9999' as the remote execution endpoint.
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 0 cached, 1 served, 0 uncached, 0 not eligible for caching
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -727,13 +727,13 @@ endpoint still running, successfully
 ``` sh
 $ just-mr --rc rc-file build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","--local-build-root","/home/tutorial/local-build-root","-R","localhost:9999","helloworld"]
 INFO: Using 'localhost:9999' as the remote execution endpoint.
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 0 cached, 1 served, 0 uncached, 0 not eligible for caching
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 4 cache hits.
 INFO: Artifacts built, logical paths are:
diff --git a/doc/tutorial/lint.md b/doc/tutorial/lint.md
index f7d99787..7940ae70 100644
--- a/doc/tutorial/lint.md
+++ b/doc/tutorial/lint.md
@@ -23,24 +23,26 @@ abstract nodes for our sources (`main.cpp`, `greet/greet.hpp`,
 ``` sh
 $ just-mr analyse -D '{"LINT": true}' --dump-nodes -
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","-D","{\"LINT\": true}","--dump-nodes","-"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{"LINT":true}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{"LINT":true}]
 INFO: Export targets found: 0 cached, 1 uncached, 0 not eligible for caching
 INFO: Result of target [["@","tutorial","","helloworld"],{"LINT":true}]: {
         "artifacts": {
-          "helloworld": {"data":{"id":"edf0113a4dff26d1d2453947fe0c7ae11a6cabb125a5ddb2f15e10106e01781c","path":"work/helloworld"},"type":"ACTION"}
+          "helloworld": {"data":{"id":"1154ef311dff82653bc6a1a92bfc6152bc116cb86652b4b5218385fe39054391","path":"work/helloworld"},"type":"ACTION"}
         },
         "provides": {
           "debug-hdrs": {
           },
           "debug-srcs": {
           },
+          "dwarf-pkg": {
+          },
           "lint": [
-            {"id":"28df1af04041db0c150bbdef440fc3265a57e1163258fd15a4373b7279e4b91a","type":"NODE"},
-            {"id":"f76b7acba64fc35a5c67f81d52a4aa47e0b0c8966eaf19c1f51477a4e0b8fc79","type":"NODE"},
-            {"id":"bd8ee55d88fade7ebc8121ab7e230aed3888b27f9e87841482b2b08ecf47acb0","type":"NODE"}
+            {"id":"aec2651a9f3b869554e3a2e5cc3ab85d86610a79aae388a4f7839396dc2167d2","type":"NODE"},
+            {"id":"509e506f8d0c2ebe4fca63fe7cc528be17165bae464410ac5fba97a6ed92930d","type":"NODE"},
+            {"id":"cb3bd5f3934e199ddf5d43eae6866f8c6ba449f060213a244c93f0826c070c3f","type":"NODE"}
           ],
           "package": {
             "to_bin": true
@@ -53,74 +55,78 @@ INFO: Result of target [["@","tutorial","","helloworld"],{"LINT":true}]: {
       }
 INFO: Target nodes of target [["@","tutorial","","helloworld"],{"LINT":true}]:
 {
-  "28df1af04041db0c150bbdef440fc3265a57e1163258fd15a4373b7279e4b91a": {
+  "509e506f8d0c2ebe4fca63fe7cc528be17165bae464410ac5fba97a6ed92930d": {
     "result": {
       "artifact_stage": {
         "include": {
           "data": {
-            "id": "ac340b9e4bcdf82d972ff9286bbda4cd7219d6d3487867875418aeb2b03012b5"
+            "id": "a882ca13d51c70aa6b02d4996aa426ee6e21bf85881ec0f6dbe0a278f5a27b7b"
           },
           "type": "TREE"
         },
-        "work/main.cpp": {
+        "work/greet/greet.hpp": {
           "data": {
-            "path": "main.cpp",
+            "path": "greet/greet.hpp",
             "repository": "tutorial"
           },
           "type": "LOCAL"
         }
       },
       "provides": {
-        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-c","work/main.cpp","-o","work/main.o"],
-        "src": "work/main.cpp"
+        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-E","work/greet/greet.hpp"],
+        "direct deps artifact names": ["include/fmt","work/greet/greet.hpp"],
+        "extra outs": [],
+        "src": "work/greet/greet.hpp"
       },
       "runfiles": {
       }
     },
     "type": "VALUE_NODE"
   },
-  "bd8ee55d88fade7ebc8121ab7e230aed3888b27f9e87841482b2b08ecf47acb0": {
+  "aec2651a9f3b869554e3a2e5cc3ab85d86610a79aae388a4f7839396dc2167d2": {
     "result": {
       "artifact_stage": {
         "include": {
           "data": {
-            "id": "124bb6d1afd5839463acf1f602109c4229ea303dc5dbfc63d2d4ce21fa590d24"
+            "id": "29d6c7fef3c48a1a3b15edd770b33d073d5c9cd1e6e9fb22917831fcdd762ebb"
           },
           "type": "TREE"
         },
-        "work/greet/greet.cpp": {
-          "data": {
-            "path": "greet/greet.cpp",
-            "repository": "tutorial"
-          },
-          "type": "LOCAL"
-        },
-        "work/greet/greet.hpp": {
+        "work/main.cpp": {
           "data": {
-            "path": "greet/greet.hpp",
+            "path": "main.cpp",
             "repository": "tutorial"
           },
           "type": "LOCAL"
         }
       },
       "provides": {
-        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-c","work/greet/greet.cpp","-o","work/greet/greet.o"],
-        "src": "work/greet/greet.cpp"
+        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-c","work/main.cpp","-o","work/main.o"],
+        "direct deps artifact names": ["include/greet/greet.hpp"],
+        "extra outs": [],
+        "src": "work/main.cpp"
       },
       "runfiles": {
       }
     },
     "type": "VALUE_NODE"
   },
-  "f76b7acba64fc35a5c67f81d52a4aa47e0b0c8966eaf19c1f51477a4e0b8fc79": {
+  "cb3bd5f3934e199ddf5d43eae6866f8c6ba449f060213a244c93f0826c070c3f": {
     "result": {
       "artifact_stage": {
         "include": {
           "data": {
-            "id": "124bb6d1afd5839463acf1f602109c4229ea303dc5dbfc63d2d4ce21fa590d24"
+            "id": "a882ca13d51c70aa6b02d4996aa426ee6e21bf85881ec0f6dbe0a278f5a27b7b"
           },
           "type": "TREE"
         },
+        "work/greet/greet.cpp": {
+          "data": {
+            "path": "greet/greet.cpp",
+            "repository": "tutorial"
+          },
+          "type": "LOCAL"
+        },
         "work/greet/greet.hpp": {
           "data": {
             "path": "greet/greet.hpp",
@@ -130,8 +136,10 @@ INFO: Target nodes of target [["@","tutorial","","helloworld"],{"LINT":true}]:
         }
       },
       "provides": {
-        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-E","work/greet/greet.hpp"],
-        "src": "work/greet/greet.hpp"
+        "cmd": ["c++","-O2","-Wall","-I","work","-isystem","include","-c","work/greet/greet.cpp","-o","work/greet/greet.o"],
+        "direct deps artifact names": ["include/fmt","work/greet/greet.hpp"],
+        "extra outs": [],
+        "src": "work/greet/greet.cpp"
       },
       "runfiles": {
       }
@@ -162,9 +170,10 @@ subcommand.
 ``` sh
 $ just-mr --main rules-cc describe --rule lint targets
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","describe","-C","...","--rule","lint","targets"]
  | Run a given linter on the lint information provided by the given targets.
+...
  Target fields
  - "linter"
    | Single artifact running the lint checks.
@@ -315,13 +324,13 @@ We now can build our lint report in the same way as any test report.
 ``` sh
 $ just-mr build lint -P report
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","lint","-P","report"]
 INFO: Requested target is [["@","tutorial","","lint"],{}]
 INFO: Analysed target [["@","tutorial","","lint"],{}]
 INFO: Export targets found: 0 cached, 1 uncached, 0 not eligible for caching
 INFO: Target tainted ["lint"].
-INFO: Discovered 11 actions, 7 trees, 0 blobs
+INFO: Discovered 11 actions, 0 tree overlays, 7 trees, 0 blobs
 INFO: Building [["@","tutorial","","lint"],{}].
 INFO: Processed 7 actions, 3 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -351,12 +360,12 @@ Building succeeds without any warning.
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 1 cached, 0 uncached, 0 not eligible for caching
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 1 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -367,15 +376,20 @@ However, the linter reports it.
 ``` sh
 $ just-mr build lint -P report || :
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","lint","-P","report"]
 INFO: Requested target is [["@","tutorial","","lint"],{}]
 INFO: Analysed target [["@","tutorial","","lint"],{}]
 INFO: Export targets found: 1 cached, 0 uncached, 0 not eligible for caching
 INFO: Target tainted ["lint"].
-INFO: Discovered 8 actions, 6 trees, 0 blobs
+INFO: Discovered 8 actions, 0 tree overlays, 6 trees, 0 blobs
 INFO: Building [["@","tutorial","","lint"],{}].
-WARN (action:b9abc2d5c9766644da1f9db5ec6586f6ced35f36670046b14f73ad532ce12ba4): lint failed for work/greet/greet.cpp (exit code 1)
+WARN (action:415a94f0c74ec937e2504b9ef5f94696232ff2c57eb2bec00c226896e2eb8be6):
+     lint failed for work/greet/greet.cpp (exit code 1); outputs:
+      - "result" [94e1707e853c36f514de3876408c09a0e0ca6fc4:5:f]
+      - "stderr" [ffc377e8898697782ab96419f6ab82c60985c752:235:f]
+      - "stdout" [17975e013bd2cc3f66509e11737e1e169f1bd162:231:f]
+      - "out" [caf25f0a518d21909625f9a7974002796f6d8b5f:39:t]
 INFO: Processed 4 actions, 2 cache hits.
 INFO: Artifacts built, logical paths are:
         out [c298959107421711f8d87a2b96e95858c065b9b9:41:t] FAILED
diff --git a/doc/tutorial/proto.md b/doc/tutorial/proto.md
index 62e084f7..57484179 100644
--- a/doc/tutorial/proto.md
+++ b/doc/tutorial/proto.md
@@ -79,16 +79,15 @@ and sets up all the repositories.
 ``` sh
 $ just-mr build address
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
-PROG: [  0%] 1 local, 0 cached, 0 done
-PROG: [  0%] 1 local, 0 cached, 0 done
-PROG: [ 66%] 1 local, 1 cached, 14 done
-PROG: [ 90%] 1 local, 1 cached, 19 done
-PROG: [ 95%] 1 local, 1 cached, 20 done; 1 fetches ("rules-cc/just/import targets")
+INFO: Found 23 repositories involved
+PROG: [ 44%] 0 computed, 1 local, 13 cached, 4 done; 7 fetches ("rules-cc/just/defaults", ...)
+PROG: [ 66%] 0 computed, 1 local, 13 cached, 6 done; 7 fetches ("rules-cc/just/defaults", ...)
+PROG: [ 66%] 0 computed, 1 local, 13 cached, 6 done; 7 fetches ("rules-cc/just/defaults", ...)
+PROG: [ 77%] 0 computed, 1 local, 13 cached, 7 done; 7 fetches ("rules-cc/just/defaults", ...)
 INFO: Setup finished, exec ["just","build","-C","...","--local-build-root","/tmp/proto","address"]
 INFO: Requested target is [["@","","","address"],{}]
 INFO: Analysed target [["@","","","address"],{}]
-INFO: Discovered 0 actions, 0 trees, 0 blobs
+INFO: Discovered 0 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","","","address"],{}].
 INFO: Processed 0 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -110,7 +109,7 @@ structure of the `.proto` files.
 ``` sh
 $ just-mr analyse --dump-nodes - address
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","--dump-nodes","-","address"]
 INFO: Requested target is [["@","","","address"],{}]
 INFO: Result of target [["@","","","address"],{}]: {
@@ -118,7 +117,7 @@ INFO: Result of target [["@","","","address"],{}]: {
         },
         "provides": {
           "proto": [
-            {"id":"2a483a2de7f25c1bc066e47245f55ec9a2d4a719","type":"NODE"}
+            {"id":"6bcfb07e77f4d00f84d4c38bff64b92e0a1cf07399bd0987250eaef1b06b0b50","type":"NODE"}
           ]
         },
         "runfiles": {
@@ -126,7 +125,19 @@ INFO: Result of target [["@","","","address"],{}]: {
       }
 INFO: Target nodes of target [["@","","","address"],{}]:
 {
-  "089f6cae7ca77bb786578d3e0138b6ff445c5c92": {
+  "6bcfb07e77f4d00f84d4c38bff64b92e0a1cf07399bd0987250eaef1b06b0b50": {
+    "node_type": "library",
+    "string_fields": {
+      "name": ["addressbook"],
+      "stage": [""]
+    },
+    "target_fields": {
+      "deps": [],
+      "srcs": [{"id":"dd79fcd0043ad155b5765f6a7a58a6c88fbcd38567ab0523684bd54a925727ce","type":"NODE"}]
+    },
+    "type": "ABSTRACT_NODE"
+  },
+  "dd79fcd0043ad155b5765f6a7a58a6c88fbcd38567ab0523684bd54a925727ce": {
     "result": {
       "artifact_stage": {
         "addressbook.proto": {
@@ -144,18 +155,6 @@ INFO: Target nodes of target [["@","","","address"],{}]:
       }
     },
     "type": "VALUE_NODE"
-  },
-  "2a483a2de7f25c1bc066e47245f55ec9a2d4a719": {
-    "node_type": "library",
-    "string_fields": {
-      "name": ["addressbook"],
-      "stage": [""]
-    },
-    "target_fields": {
-      "deps": [],
-      "srcs": [{"id":"089f6cae7ca77bb786578d3e0138b6ff445c5c92","type":"NODE"}]
-    },
-    "type": "ABSTRACT_NODE"
   }
 }
 $
@@ -214,12 +213,12 @@ $ just-mr build add_person
 [...]
 $ just-mr build add_person
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","add_person"]
 INFO: Requested target is [["@","","","add_person"],{}]
 INFO: Analysed target [["@","","","add_person"],{}]
 INFO: Export targets found: 2 cached, 0 uncached, 0 not eligible for caching
-INFO: Discovered 5 actions, 2 trees, 0 blobs
+INFO: Discovered 5 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","","","add_person"],{}].
 INFO: Processed 5 actions, 5 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -235,14 +234,22 @@ replaced by `"..."` for clarity.)
 ``` sh
 $ just-mr analyse add_person --dump-actions -
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","add_person","--dump-actions","-"]
 INFO: Requested target is [["@","","","add_person"],{}]
 INFO: Result of target [["@","","","add_person"],{}]: {
         "artifacts": {
-          "add_person": {"data":{"id":"6ba3552427c6c47b52bc2fa571a64af300e27243","path":"add_person"},"type":"ACTION"}
+          "add_person": {"data":{"id":"cb403cfeb7af26f83cb268056847f465d330ac44f7a563788305436b2640df2e","path":"work/add_person"},"type":"ACTION"}
         },
         "provides": {
+          "debug-hdrs": {
+          },
+          "debug-srcs": {
+          },
+          "dwarf-pkg": {
+          },
+          "lint": [
+          ],
           "package": {
             "to_bin": true
           },
@@ -289,14 +296,22 @@ earlier.
 ``` sh
 $ just-mr analyse add_person --dump-targets -
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","add_person","--dump-targets","-"]
 INFO: Requested target is [["@","","","add_person"],{}]
 INFO: Result of target [["@","","","add_person"],{}]: {
         "artifacts": {
-          "add_person": {"data":{"id":"6ba3552427c6c47b52bc2fa571a64af300e27243","path":"add_person"},"type":"ACTION"}
+          "add_person": {"data":{"id":"cb403cfeb7af26f83cb268056847f465d330ac44f7a563788305436b2640df2e","path":"work/add_person"},"type":"ACTION"}
         },
         "provides": {
+          "debug-hdrs": {
+          },
+          "debug-srcs": {
+          },
+          "dwarf-pkg": {
+          },
+          "lint": [
+          ],
           "package": {
             "to_bin": true
           },
@@ -309,14 +324,14 @@ INFO: Result of target [["@","","","add_person"],{}]: {
 INFO: List of analysed targets:
 {
   "#": {
-    "eda46ea21de25033ff7250e6a4cdc0b2c24be0c7": {
-      "2a483a2de7f25c1bc066e47245f55ec9a2d4a719": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"AR":null,"ARCH":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}]
+    "c4f68b96f739e96f894c5b498ab2b3f0bc62df120419094f867b1d5769f5e4fa": {
+      "6bcfb07e77f4d00f84d4c38bff64b92e0a1cf07399bd0987250eaef1b06b0b50": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"AR":null,"ARCH":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}]
     }
   },
   "@": {
     "": {
       "": {
-        "add_person": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
+        "add_person": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"DWP":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"LINT":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
         "address": [{}]
       }
     },
@@ -344,8 +359,8 @@ INFO: List of analysed targets:
     },
     "rules-cc/just/toolchain": {
       "CC": {
-        "defaults": [{"ARCH":null,"HOST_ARCH":null,"OS":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
-        "unknown": [{"ARCH":null,"HOST_ARCH":null,"TARGET_ARCH":null}]
+        "defaults": [{"ARCH":null,"DEBUG":null,"HOST_ARCH":null,"OS":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
+        "unknown": [{"ARCH":null,"DEBUG":null,"HOST_ARCH":null,"TARGET_ARCH":null}]
       }
     }
   }
@@ -371,7 +386,7 @@ purpose.
 ``` sh
 $ just-mr analyse 'address proto library'
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","address proto library"]
 INFO: Requested target is [["@","","","address proto library"],{}]
 INFO: Result of target [["@","","","address proto library"],{}]: {
@@ -381,16 +396,17 @@ INFO: Result of target [["@","","","address proto library"],{}]: {
           ...
           "compile-deps": {
             ...
-            "addressbook.pb.h": {"data":{"id":"b05ff2058068a30961c3e28318b9105795a08a42","path":"work/addressbook.pb.h"},"type":"ACTION"},
+            "addressbook.pb.h": {"data":{"id":"bab5472beed7f032000d2d2cbf7d772c22c8c95cccdecbe70e73e9494ee34bf0","path":"work/addressbook.pb.h"},"type":"ACTION"},
             ...
           },
+          ...
           "link-args": [
             "libaddressbook.a",
             ...
           ],
           "link-deps": {
             ...
-            "libaddressbook.a": {"data":{"id":"acc15c9c1218b4df277f49d537a3c4b961263490","path":"libaddressbook.a"},"type":"ACTION"},
+            "libaddressbook.a": {"data":{"id":"fa60ded058e1fc7663b4b925a1274d1fe330bedb12c8785a7042e450ef17a7c1","path":"work/libaddressbook.a"},"type":"ACTION"},
             ...
           },
           ...
@@ -446,39 +462,42 @@ targets and the one anonymous target is reused by both binaries.
 ``` sh
 $ just-mr analyse test --dump-targets -
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","test","--dump-targets","-"]
 INFO: Requested target is [["@","","","test"],{}]
 INFO: Result of target [["@","","","test"],{}]: {
         "artifacts": {
-          "result": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"result"},"type":"ACTION"},
-          "stderr": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"stderr"},"type":"ACTION"},
-          "stdout": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"stdout"},"type":"ACTION"},
-          "time-start": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"time-start"},"type":"ACTION"},
-          "time-stop": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"time-stop"},"type":"ACTION"},
-          "work/addressbook.data": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"work/addressbook.data"},"type":"ACTION"},
-          "work/out.txt": {"data":{"id":"e37a69e5d5213f53da5f1c2a42297c987732984f","path":"work/out.txt"},"type":"ACTION"}
+          "pwd": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"pwd"},"type":"ACTION"},
+          "result": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"result"},"type":"ACTION"},
+          "stderr": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"stderr"},"type":"ACTION"},
+          "stdout": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"stdout"},"type":"ACTION"},
+          "time-start": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"time-start"},"type":"ACTION"},
+          "time-stop": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"time-stop"},"type":"ACTION"},
+          "work/addressbook.data": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"work/addressbook.data"},"type":"ACTION"},
+          "work/out.txt": {"data":{"id":"73744cdcd8be5082a6960ec0cf8c929d2a9cd0dd65860e3458901c49c8e4744f","path":"work/out.txt"},"type":"ACTION"}
         },
         "provides": {
+          "lint": [
+          ]
         },
         "runfiles": {
-          "read-write-test": {"data":{"id":"71d9414c93b1bf4c2883af6070671761f9bc5cbf"},"type":"TREE"}
+          "read-write-test": {"data":{"id":"89bfa89b538549aa812415be625759872191d05315726828829848a87f86fa9f"},"type":"TREE"}
         }
       }
 INFO: List of analysed targets:
 {
   "#": {
-    "eda46ea21de25033ff7250e6a4cdc0b2c24be0c7": {
-      "2a483a2de7f25c1bc066e47245f55ec9a2d4a719": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"AR":null,"ARCH":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}]
+    "c4f68b96f739e96f894c5b498ab2b3f0bc62df120419094f867b1d5769f5e4fa": {
+      "6bcfb07e77f4d00f84d4c38bff64b92e0a1cf07399bd0987250eaef1b06b0b50": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"AR":null,"ARCH":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}]
     }
   },
   "@": {
     "": {
       "": {
-        "add_person": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
+        "add_person": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"DWP":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"LINT":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
         "address": [{}],
-        "list_people": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
-        "test": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"ARCH_DISPATCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"RUNS_PER_TEST":null,"TARGET_ARCH":null,"TEST_ENV":null,"TIMEOUT_SCALE":null,"TOOLCHAIN_CONFIG":null}],
+        "list_people": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"DWP":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"LINT":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
+        "test": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"ADD_LDFLAGS":null,"AR":null,"ARCH":null,"ARCH_DISPATCH":null,"BUILD_POSITION_INDEPENDENT":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"DWP":null,"ENV":null,"HOST_ARCH":null,"LDFLAGS":null,"LINT":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"RUNS_PER_TEST":null,"TARGET_ARCH":null,"TEST_ENV":null,"TEST_SUMMARY_EXECUTION_PROPERTIES":null,"TIMEOUT_SCALE":null,"TOOLCHAIN_CONFIG":null}],
         "test.sh": [{}]
       }
     },
@@ -488,6 +507,9 @@ INFO: List of analysed targets:
       },
       "CC/proto": {
         "defaults": [{"ADD_CFLAGS":null,"ADD_CXXFLAGS":null,"AR":null,"ARCH":null,"CC":null,"CFLAGS":null,"CXX":null,"CXXFLAGS":null,"DEBUG":null,"ENV":null,"HOST_ARCH":null,"OS":null,"PKG_CONFIG_ARGS":null,"PREFIX":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}]
+      },
+      "shell": {
+        "defaults": [{"ARCH":null,"HOST_ARCH":null,"TARGET_ARCH":null}]
       }
     },
     "rules-cc/just/protobuf": {
@@ -506,8 +528,8 @@ INFO: List of analysed targets:
     },
     "rules-cc/just/toolchain": {
       "CC": {
-        "defaults": [{"ARCH":null,"HOST_ARCH":null,"OS":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
-        "unknown": [{"ARCH":null,"HOST_ARCH":null,"TARGET_ARCH":null}]
+        "defaults": [{"ARCH":null,"DEBUG":null,"HOST_ARCH":null,"OS":null,"TARGET_ARCH":null,"TOOLCHAIN_CONFIG":null}],
+        "unknown": [{"ARCH":null,"DEBUG":null,"HOST_ARCH":null,"TARGET_ARCH":null}]
       }
     }
   }
@@ -521,28 +543,29 @@ Finally, the test passes and the output is as expected.
 ``` sh
 $ just-mr build test -P work/out.txt
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","test","-P","work/out.txt"]
 INFO: Requested target is [["@","","","test"],{}]
 INFO: Analysed target [["@","","","test"],{}]
 INFO: Export targets found: 2 cached, 0 uncached, 0 not eligible for caching
 INFO: Target tainted ["test"].
-INFO: Discovered 8 actions, 5 trees, 1 blobs
+INFO: Discovered 8 actions, 0 tree overlays, 5 trees, 1 blobs
 INFO: Building [["@","","","test"],{}].
 INFO: Processed 8 actions, 5 cache hits.
 INFO: Artifacts built, logical paths are:
+        pwd [9006e78b54c8f3118918d2d471c79745ffa0c8a0:311:f]
         result [7ef22e9a431ad0272713b71fdc8794016c8ef12f:5:f]
         stderr [e69de29bb2d1d6434b8b29ae775ad8c2e48c5391:0:f]
         stdout [7fab9dd1ee66a1e76a3697a27524f905600afbd0:196:f]
-        time-start [8e3614748ef049ea08bc49740d9ba55dfd42ef06:11:f]
-        time-stop [8e3614748ef049ea08bc49740d9ba55dfd42ef06:11:f]
-        work/addressbook.data [b673b647fbce717116104e84c335fdecaae974d6:41:f]
-        work/out.txt [ae02d08605d72d74bbfa72d33e4d314bb3632591:101:f]
+        time-start [0836c60e080d14176345259e32f65c1e14edfc49:11:f]
+        time-stop [0836c60e080d14176345259e32f65c1e14edfc49:11:f]
+        work/addressbook.data [036614cb6ec77ecf979729cbef3f22bd5ebd6a56:41:f]
+        work/out.txt [90ffe98823f628b92fe54b8c85f1754a9085c8db:101:f]
       (1 runfiles omitted.)
 Person ID: 12345
   Name: John Doe
   E-mail address: jdoe@example.org
-  Updated: 2024-04-19T15:51:27Z
+  Updated: ...
 INFO: Target tainted ["test"].
 $
 ```
@@ -574,51 +597,49 @@ The debugging target can then be installed to a directory of our choosing.
 ``` sh
 $ just-mr install "list_people debug staged" -o .ext/debug
 INFO: Performing repositories setup
-INFO: Found 23 repositories to set up
+INFO: Found 23 repositories involved
 INFO: Setup finished, exec ["just","install","-C","...","list_people debug staged","-o",".ext/debug"]
 INFO: Requested target is [["@","","","list_people debug staged"],{}]
 INFO: Analysed target [["@","","","list_people debug staged"],{}]
-INFO: Export targets found: 0 cached, 90 uncached, 0 not eligible for caching
-INFO: Discovered 419 actions, 89 trees, 1 blobs
+INFO: Export targets found: 0 cached, 98 uncached, 0 not eligible for caching
+INFO: Discovered 447 actions, 0 tree overlays, 99 trees, 1 blobs
 INFO: Building [["@","","","list_people debug staged"],{}].
 [...]
-INFO: Processed 419 actions, 1 cache hits.
+INFO: Processed 447 actions, 1 cache hits.
 INFO: Artifacts can be found in:
-        /tmp/tutorial/.ext/debug/bin/list_people [2cc2f0efa28327bdf7d49f5d2cafcc25c1693a4c:41761464:x]
+        /tmp/tutorial/.ext/debug/bin/list_people [71165d3aed4491169ed8bb8e783a9bbc15b9e9b6:46902576:x]
         /tmp/tutorial/.ext/debug/include/absl/algorithm/algorithm.h [59aeed7d264d927e44648428056cc9c489fad844:2190:f]
-        /tmp/tutorial/.ext/debug/include/absl/algorithm/container.h [c7bafae1477cf2bb88928b92d0248cb8a146814c:78387:f]
+        /tmp/tutorial/.ext/debug/include/absl/algorithm/container.h [6bbe3b5adf40b8a4bc48551f8e9f0af96dd98ace:80031:f]
         ...
-        /tmp/tutorial/.ext/debug/include/absl/types/variant.h [ac93464bf8d0f63f745b8461daa7698a91caf6f7:34055:f]
-        /tmp/tutorial/.ext/debug/include/absl/utility/utility.h [fc0d1f65516a3da1341f639577acb4fdab64fe0d:8711:f]
-        /tmp/tutorial/.ext/debug/include/addressbook.pb.h [964e2745b22e5920f291801db91f2c73ed5435ad:44427:f]
-        /tmp/tutorial/.ext/debug/include/google/protobuf/any.h [03ddf3f54386e158b1f2575c158f1106d7265a24:5302:f]
-        /tmp/tutorial/.ext/debug/include/google/protobuf/any.pb.h [b9c4ada87b05a3fdeef134e561d4ce010040728e:15844:f]
+        /tmp/tutorial/.ext/debug/include/absl/utility/utility.h [ebbb49b7159a3bcf2f1edbf9d44bd67dceb0329f:7646:f]
+        /tmp/tutorial/.ext/debug/include/addressbook.pb.h [f273099fe8d8345b1e61bdfa19751aefebe55869:46787:f]
+        /tmp/tutorial/.ext/debug/include/google/protobuf/any.h [fe8a1775c77b91fc08368833d70236509dde82b7:6127:f]
+        /tmp/tutorial/.ext/debug/include/google/protobuf/any.pb.h [67185ebca130f840ddacd687c59faceb523730e4:16787:f]
         /tmp/tutorial/.ext/debug/include/google/protobuf/any.proto [eff44e5099da27f7fb1ef14bb34902ccf4250b89:6154:f]
         ...
-        /tmp/tutorial/.ext/debug/include/google/protobuf/wrappers.pb.h [02819d3219fe8ffcaf67cee25b7a73ab6e934f24:69964:f]
+        /tmp/tutorial/.ext/debug/include/google/protobuf/wrappers.pb.h [0d85637aa1dadd86ccbc81a9563d54aba9eb9b3b:77623:f]
         /tmp/tutorial/.ext/debug/include/google/protobuf/wrappers.proto [1959fa55a4e7f284a9d6a78a447c5d89d137e87c:4044:f]
-        /tmp/tutorial/.ext/debug/include/utf8_validity.h [4a8d75b3b46d569526b9ae36814e71f1dab476d7:692:f]
-        /tmp/tutorial/.ext/debug/include/zconf.h [fb76ffe312ae45cf5d5d5e448f81e06fa79ab874:16682:f]
-        /tmp/tutorial/.ext/debug/include/zlib.h [6b7244f9943219c7b6e5a08d4913f2a15810d0c4:96778:f]
+        /tmp/tutorial/.ext/debug/include/utf8_range.h [d7c232616022bb28c8bc35ca62d61f890a2f8ced:540:f]
+        /tmp/tutorial/.ext/debug/include/utf8_validity.h [1f251d0fec0a2ae496335780d93a2869a1d7f743:712:f]
+        /tmp/tutorial/.ext/debug/include/zconf.h [62adc8d8431f2f9149ae0b1583915e21a28dd8b5:16500:f]
+        /tmp/tutorial/.ext/debug/include/zlib.h [8d4b932eaf6a0fbb8133b3ab49ba5ef587059fa0:96829:f]
         /tmp/tutorial/.ext/debug/work/absl/algorithm/algorithm.h [59aeed7d264d927e44648428056cc9c489fad844:2190:f]
-        /tmp/tutorial/.ext/debug/work/absl/algorithm/container.h [c7bafae1477cf2bb88928b92d0248cb8a146814c:78387:f]
+        /tmp/tutorial/.ext/debug/work/absl/algorithm/container.h [6bbe3b5adf40b8a4bc48551f8e9f0af96dd98ace:80031:f]
         ...
-        /tmp/tutorial/.ext/debug/work/absl/types/span.h [88cd75954084d0df6d774fc038f243fdc1140942:27228:f]
-        /tmp/tutorial/.ext/debug/work/absl/types/variant.h [ac93464bf8d0f63f745b8461daa7698a91caf6f7:34055:f]
-        /tmp/tutorial/.ext/debug/work/absl/utility/utility.h [fc0d1f65516a3da1341f639577acb4fdab64fe0d:8711:f]
-        /tmp/tutorial/.ext/debug/work/addressbook.pb.cc [b19ba7ad01dbf9c701f58b2b511845da2f0e8171:36687:f]
-        /tmp/tutorial/.ext/debug/work/addressbook.pb.h [964e2745b22e5920f291801db91f2c73ed5435ad:44427:f]
+        /tmp/tutorial/.ext/debug/work/absl/utility/utility.h [ebbb49b7159a3bcf2f1edbf9d44bd67dceb0329f:7646:f]
+        /tmp/tutorial/.ext/debug/work/addressbook.pb.cc [2261b2349a90b090d501c3c3c362e1efc783c218:46574:f]
+        /tmp/tutorial/.ext/debug/work/addressbook.pb.h [f273099fe8d8345b1e61bdfa19751aefebe55869:46787:f]
         ...
-        /tmp/tutorial/.ext/debug/work/google/protobuf/any.h [03ddf3f54386e158b1f2575c158f1106d7265a24:5302:f]
-        /tmp/tutorial/.ext/debug/work/google/protobuf/any.pb.h [b9c4ada87b05a3fdeef134e561d4ce010040728e:15844:f]
+        /tmp/tutorial/.ext/debug/work/google/protobuf/any.h [fe8a1775c77b91fc08368833d70236509dde82b7:6127:f]
+        /tmp/tutorial/.ext/debug/work/google/protobuf/any.pb.h [67185ebca130f840ddacd687c59faceb523730e4:16787:f]
         /tmp/tutorial/.ext/debug/work/google/protobuf/any.proto [eff44e5099da27f7fb1ef14bb34902ccf4250b89:6154:f]
         ...
         /tmp/tutorial/.ext/debug/work/list_people.cc [b309c596804739007510f06ff62c12898275fec7:2268:f]
         ...
-        /tmp/tutorial/.ext/debug/work/zlib.h [6b7244f9943219c7b6e5a08d4913f2a15810d0c4:96778:f]
+        /tmp/tutorial/.ext/debug/work/zlib.h [8d4b932eaf6a0fbb8133b3ab49ba5ef587059fa0:96829:f]
         /tmp/tutorial/.ext/debug/work/zutil.c [b1c5d2d3c6daf5a4b7a337dafe3e862ca177b41c:7179:f]
-        /tmp/tutorial/.ext/debug/work/zutil.h [902a304cc2d913d5548e0489c0c451790208c96f:7247:f]
-INFO: Backing up artifacts of 90 export targets
+        /tmp/tutorial/.ext/debug/work/zutil.h [48dd7febae65eeeaad7794f0a9317bcd054c107f:6677:f]
+INFO: Backing up artifacts of 98 export targets
 ```
 
 As the command requires (re)building many targets in debug mode, some of the
diff --git a/doc/tutorial/rebuild.md b/doc/tutorial/rebuild.md
index dfbd9ff6..803260da 100644
--- a/doc/tutorial/rebuild.md
+++ b/doc/tutorial/rebuild.md
@@ -134,11 +134,11 @@ takes the action result from cache.
 $ touch ROOT
 $ just-mr build
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","build","-C","..."]
 INFO: Requested target is [["@","","",""],{}]
 INFO: Analysed target [["@","","",""],{}]
-INFO: Discovered 6 actions, 1 trees, 0 blobs
+INFO: Discovered 6 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","","",""],{}].
 INFO: Processed 6 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -148,11 +148,11 @@ INFO: Artifacts built, logical paths are:
 $ sleep 1
 $ just-mr build
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","build","-C","..."]
 INFO: Requested target is [["@","","",""],{}]
 INFO: Analysed target [["@","","",""],{}]
-INFO: Discovered 6 actions, 1 trees, 0 blobs
+INFO: Discovered 6 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","","",""],{}].
 INFO: Processed 6 actions, 6 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -161,11 +161,11 @@ INFO: Artifacts built, logical paths are:
         share/hello/version.txt [de0d4f12aeb65c9e0a52909a07b0638e16e112fd:34:f]
 $ just-mr rebuild
 INFO: Performing repositories setup
-INFO: Found 2 repositories to set up
+INFO: Found 2 repositories involved
 INFO: Setup finished, exec ["just","rebuild","-C","..."]
 INFO: Requested target is [["@","","",""],{}]
 INFO: Analysed target [["@","","",""],{}]
-INFO: Discovered 6 actions, 1 trees, 0 blobs
+INFO: Discovered 6 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Rebuilding [["@","","",""],{}].
 WARN: Found flaky action:
        - id: 50e387d4d4c4dd9d8e6d08e1895c7dc729e5a4f3e7c7ad90cc93e373b5dea947
diff --git a/doc/tutorial/target-file-glob-tree.md b/doc/tutorial/target-file-glob-tree.md
index 09b8db78..057f858e 100644
--- a/doc/tutorial/target-file-glob-tree.md
+++ b/doc/tutorial/target-file-glob-tree.md
@@ -78,11 +78,11 @@ with the empty object and refine it later.
 $ echo {} > TARGETS.units
 $ just-mr install -o . definitions.units
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","install","-C","...","-o",".","definitions.units"]
 INFO: Requested target is [["@","units","","definitions.units"],{}]
 INFO: Analysed target [["@","units","","definitions.units"],{}]
-INFO: Discovered 0 actions, 0 trees, 0 blobs
+INFO: Discovered 0 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","units","","definitions.units"],{}].
 INFO: Processed 0 actions, 0 cache hits.
 INFO: Artifacts can be found in:
@@ -132,17 +132,17 @@ their inputs) and, in fact, have a fixed command line.
 ``` sh
 $ just-mr analyse definitions.units --dump-actions -
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","definitions.units","--dump-actions","-"]
 INFO: Requested target is [["@","units","","definitions.units"],{}]
 INFO: Result of target [["@","units","","definitions.units"],{}]: {
         "artifacts": {
-          "definitions.units": {"data":{"id":"ac620477c30dc79701cdda95ec97a06f12251b6f","path":"patched"},"type":"ACTION"}
+          "definitions.units": {"data":{"id":"25d6d534845e948a49064e394712e529b4f6bd915de19d5d42549dacfa60dc41","path":"patched"},"type":"ACTION"}
         },
         "provides": {
         },
         "runfiles": {
-          "definitions.units": {"data":{"id":"ac620477c30dc79701cdda95ec97a06f12251b6f","path":"patched"},"type":"ACTION"}
+          "definitions.units": {"data":{"id":"25d6d534845e948a49064e394712e529b4f6bd915de19d5d42549dacfa60dc41","path":"patched"},"type":"ACTION"}
         }
       }
 INFO: Actions for target [["@","units","","definitions.units"],{}]:
@@ -188,11 +188,11 @@ Building `"definitions.units"` we find out that the patch applied correctly
 ``` sh
 $ just-mr build definitions.units -P definitions.units | grep -A 5 'German units'
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","definitions.units","-P","definitions.units"]
 INFO: Requested target is [["@","units","","definitions.units"],{}]
 INFO: Analysed target [["@","units","","definitions.units"],{}]
-INFO: Discovered 1 actions, 0 trees, 1 blobs
+INFO: Discovered 1 actions, 0 tree overlays, 0 trees, 1 blobs
 INFO: Building [["@","units","","definitions.units"],{}].
 INFO: Processed 1 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -224,19 +224,19 @@ and the output of the patch action.
 ``` sh
 $ just-mr analyse data-draft
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","analyse","-C","...","data-draft"]
 INFO: Requested target is [["@","units","","data-draft"],{}]
 INFO: Result of target [["@","units","","data-draft"],{}]: {
         "artifacts": {
           "currency.units": {"data":{"file_type":"f","id":"ac6da8afaac0f34e114e123e4ab3a41e59121b10","size":14707},"type":"KNOWN"},
-          "definitions.units": {"data":{"id":"ac620477c30dc79701cdda95ec97a06f12251b6f","path":"patched"},"type":"ACTION"}
+          "definitions.units": {"data":{"id":"25d6d534845e948a49064e394712e529b4f6bd915de19d5d42549dacfa60dc41","path":"patched"},"type":"ACTION"}
         },
         "provides": {
         },
         "runfiles": {
           "currency.units": {"data":{"file_type":"f","id":"ac6da8afaac0f34e114e123e4ab3a41e59121b10","size":14707},"type":"KNOWN"},
-          "definitions.units": {"data":{"id":"ac620477c30dc79701cdda95ec97a06f12251b6f","path":"patched"},"type":"ACTION"}
+          "definitions.units": {"data":{"id":"25d6d534845e948a49064e394712e529b4f6bd915de19d5d42549dacfa60dc41","path":"patched"},"type":"ACTION"}
         }
       }
 $
@@ -329,17 +329,17 @@ total, giving 5 compile and one link action.
 ``` sh
 $ just-mr build units-draft
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","units-draft"]
 INFO: Requested target is [["@","units","","units-draft"],{}]
 INFO: Analysed target [["@","units","","units-draft"],{}]
-INFO: Discovered 6 actions, 1 trees, 0 blobs
+INFO: Discovered 6 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","units","","units-draft"],{}].
-INFO (action:f9426e7a0c3525618ead3787872e843c86f12dd2):
-     Stderr of command: ["cc","-I","work","-isystem","include","-c","work/strfunc.c","-o","work/strfunc.o"]
-     work/strfunc.c:109:8: warning: extra tokens at end of #endif directive [-Wendif-labels]
-       109 | #endif NO_STRSPN
-           |        ^~~~~~~~~
+INFO (action:a6adae74a8b50103a46700203f32e2286cec0a31ac41667b88d5b1ebe9b9860c):
+     Stderr of command ["cc","-I","work","-isystem","include","-c","work/strfunc.c","-o","work/strfunc.o"] in environment {"PATH":"/bin:/usr/bin"}
+       work/strfunc.c:109:8: warning: extra tokens at end of #endif directive [-Wendif-labels]
+         109 | #endif NO_STRSPN
+             |        ^~~~~~~~~
 INFO: Processed 6 actions, 0 cache hits.
 INFO: Artifacts built, logical paths are:
         units [40cdc2a9fa6f06004bbf290014519ba21f122e7d:124488:x]
@@ -354,11 +354,11 @@ a patch.
 ``` sh
 $ just-mr install -o . strfunc.c
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","install","-C","...","-o",".","strfunc.c"]
 INFO: Requested target is [["@","units","","strfunc.c"],{}]
 INFO: Analysed target [["@","units","","strfunc.c"],{}]
-INFO: Discovered 0 actions, 0 trees, 0 blobs
+INFO: Discovered 0 actions, 0 tree overlays, 0 trees, 0 blobs
 INFO: Building [["@","units","","strfunc.c"],{}].
 INFO: Processed 0 actions, 0 cache hits.
 INFO: Artifacts can be found in:
@@ -407,11 +407,11 @@ cache.
 ``` sh
 $ just-mr build units
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","units"]
 INFO: Requested target is [["@","units","","units"],{}]
 INFO: Analysed target [["@","units","","units"],{}]
-INFO: Discovered 7 actions, 1 trees, 1 blobs
+INFO: Discovered 7 actions, 0 tree overlays, 1 trees, 1 blobs
 INFO: Building [["@","units","","units"],{}].
 INFO: Processed 7 actions, 5 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -434,11 +434,11 @@ Then things work as expected
 ``` sh
 $ just-mr install -o /tmp/testinstall
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","install","-C","...","-o","/tmp/testinstall"]
 INFO: Requested target is [["@","units","",""],{}]
 INFO: Analysed target [["@","units","",""],{}]
-INFO: Discovered 8 actions, 1 trees, 1 blobs
+INFO: Discovered 8 actions, 0 tree overlays, 1 trees, 1 blobs
 INFO: Building [["@","units","",""],{}].
 INFO: Processed 8 actions, 8 cache hits.
 INFO: Artifacts can be found in:
diff --git a/doc/tutorial/third-party-software.md b/doc/tutorial/third-party-software.md
index 0016f6b8..951a7cbb 100644
--- a/doc/tutorial/third-party-software.md
+++ b/doc/tutorial/third-party-software.md
@@ -212,12 +212,12 @@ repositories:
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 0 cached, 0 uncached, 1 not eligible for caching
-INFO: Discovered 7 actions, 3 trees, 0 blobs
+INFO: Discovered 7 actions, 0 tree overlays, 3 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 7 actions, 1 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -231,12 +231,12 @@ repository `fmtlib` must be specified via the `--main` option:
 ``` sh
 $ just-mr --main fmtlib build fmt
 INFO: Performing repositories setup
-INFO: Found 4 repositories to set up
+INFO: Found 4 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","fmt"]
 INFO: Requested target is [["@","fmtlib","","fmt"],{}]
 INFO: Analysed target [["@","fmtlib","","fmt"],{}]
 INFO: Export targets found: 0 cached, 0 uncached, 1 not eligible for caching
-INFO: Discovered 3 actions, 1 trees, 0 blobs
+INFO: Discovered 3 actions, 0 tree overlays, 1 trees, 0 blobs
 INFO: Building [["@","fmtlib","","fmt"],{}].
 INFO: Processed 3 actions, 3 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -260,8 +260,8 @@ versioning first:
 $ git init .
 $ git add tutorial-defaults fmt-layer
 $ git commit -m "fix compile flags and fmt targets layer"
-[master (root-commit) 9c3a98b] fix compile flags and fmt targets layer
- 4 files changed, 29 insertions(+)
+[master (root-commit) 0337c65] fix compile flags and fmt targets layer
+ 4 files changed, 37 insertions(+)
  create mode 100644 fmt-layer/TARGETS
  create mode 100644 fmt-layer/include/fmt/TARGETS
  create mode 100644 fmt-layer/src/TARGETS
@@ -326,12 +326,12 @@ the benefits of the target cache should be visible on the second build:
 ``` sh
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 0 cached, 1 uncached, 0 not eligible for caching
-INFO: Discovered 7 actions, 3 trees, 0 blobs
+INFO: Discovered 7 actions, 0 tree overlays, 3 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 7 actions, 7 cache hits.
 INFO: Artifacts built, logical paths are:
@@ -340,12 +340,12 @@ INFO: Backing up artifacts of 1 export targets
 $
 $ just-mr build helloworld
 INFO: Performing repositories setup
-INFO: Found 5 repositories to set up
+INFO: Found 5 repositories involved
 INFO: Setup finished, exec ["just","build","-C","...","helloworld"]
 INFO: Requested target is [["@","tutorial","","helloworld"],{}]
 INFO: Analysed target [["@","tutorial","","helloworld"],{}]
 INFO: Export targets found: 1 cached, 0 uncached, 0 not eligible for caching
-INFO: Discovered 4 actions, 2 trees, 0 blobs
+INFO: Discovered 4 actions, 0 tree overlays, 2 trees, 0 blobs
 INFO: Building [["@","tutorial","","helloworld"],{}].
 INFO: Processed 4 actions, 4 cache hits.
 INFO: Artifacts built, logical paths are: