diff --git a/README.md b/README.md
index 3ae4c7aa..d45caeeb 100644
--- a/README.md
+++ b/README.md
@@ -73,4 +73,4 @@ composer require --dev innmind/black-box
 
 ## Documentation
 
-Full documentation can be found in the [here](https://innmind.github.io/BlackBox/).
+Full documentation can be found in the [here](https://innmind.org/BlackBox/).
diff --git a/documentation/assert/memory.md b/documentation/assert/memory.md
index 44fcd84f..973aabe8 100644
--- a/documentation/assert/memory.md
+++ b/documentation/assert/memory.md
@@ -16,11 +16,12 @@ In order for these assertions to work properly you need to:
     use Innmind\BlackBox\{
         Application,
         Runner\Assert,
+        Prove,
     };
 
     Application::new([])
-        ->tryToProve(static function(): \Generator {
-            yield test(
+        ->tryToProve(static function(Prove $prove): \Generator {
+            yield $prove->test(
                 'Some memory test',
                 static function(Assert $assert) {
                     $assert
diff --git a/documentation/config.md b/documentation/config.md
index 1918a596..9eb414b5 100644
--- a/documentation/config.md
+++ b/documentation/config.md
@@ -82,56 +82,20 @@ Application::new([])
     ->exit();
 ```
 
-## Changing the way the framework outputs the results
-
-By default the framework outputs any data as soon as possible to keep the usage of memory low but this means rewinding the output to find a failure. If you want to change the output you need to implement the interface `Innmind\BlackBox\Runner\Printer` and declare it liek this:
-
-```php
-use Innmind\BlackBox\{
-    Application,
-    Runner\Load,
-};
-
-Application::new([])
-    ->usePrinter(new YourPrinter())
-    ->tryToProve(Load::everythingIn('proofs/'))
-    ->exit();
-```
-
-## Disable global functions
-
-By default the framework exposes the `proof`, `test`, `property`, `properties` and `given` global functions but if you don't want them to avoid collisions with your own methods you can use the namespaced functions (available in the `Innmind\BlackBox\Runner` namespace).
-
-```php
-use Innmind\BlackBox\{
-    Application,
-    Runner\Load,
-};
-
-Application::new([])
-    ->disableGlobalFunctions()
-    ->tryToProve(Load::everythingIn('proofs/'))
-    ->exit();
-```
-
-??? warning
-    This method is deprecated and will be removed in the next major version.
-
 ## Disable GitHub Action output
 
 When it detects it's run inside a GitHub Action the framework groups each proof output to make the output more compact for large suites. It also adds annotations to quickly jump to each failing proof.
 
 You can disable such behaviour like this:
 
-```php hl_lines="4 8"
+```php hl_lines="7"
 use Innmind\BlackBox\{
     Application,
     Runner\Load,
-    Runner\Printer\Standard,
 };
 
 Application::new([])
-    ->usePrinter(Standard::new()->disableGitHubOutput())
+    ->mapPrinter(static fn($printer) => $printer->disableGitHubOutput())
     ->tryToProve(Load::everythingIn('proofs/'))
     ->exit();
 ```
@@ -142,24 +106,26 @@ By default BlackBox will fail a proof when a scenario did not make any assertion
 
 However if your style of making assertions may not always lead to a proof making one, then you can disable this feature this way:
 
-```php hl_lines="4"
-use Innmind\BlackBox\Application;
+```php hl_lines="7"
+use Innmind\BlackBox\{
+    Application,
+    Prove,
+};
 
 Application::new([])
     ->allowProofsToNotMakeAnyAssertions()
-    ->tryToProve(static function() {
-        yield proof(
-            'Some proof',
-            given(Set::of('some input')),
-            static function($assert, $input) {
+    ->tryToProve(static function(Prove $prove) {
+        yield $prove
+            ->proof('Some proof')
+            ->given(Set::of('some input'))
+            ->test(static function($assert, $input) {
                 try {
                     doSomething($input);
                     $assert->fail('It should throw');
                 } catch (\Exception $e) {
                     // expected behaviour
                 }
-            },
-        );
+            });
     })
     ->exit();
 ```
diff --git a/documentation/getting-started/property.md b/documentation/getting-started/property.md
index a698ab65..a78ae704 100644
--- a/documentation/getting-started/property.md
+++ b/documentation/getting-started/property.md
@@ -102,7 +102,7 @@ You can run this property like this:
         ->tryToProve(static function(Prove $prove): \Generator {
             yield $prove->property(
                 AddIsCommutative::class,
-                Set::of(new Add),
+                Set::of(static fn() => new Add),
             );
         })
         ->exit();
@@ -130,27 +130,27 @@ Application::new([])
     ->tryToProve(static function(Prove $prove): \Generator {
         yield $prove->properties(
             'Add properties',
-            Set\Properties::any(
+            Set::properties(
                 AddIsCommutative::any(),
                 AddIsCumulative::any(),
                 ZeroIsAnIdentityValue::any(),
             ),
-            Set::of(new Add),
+            Set::of(static fn() => new Add),
         );
 
         yield $prove->property(
             AddIsCommutative::class,
-            Set::of(new Add),
+            Set::of(static fn() => new Add),
         );
 
         yield $prove->property(
             AddIsCumulative::class,
-            Set::of(new Add),
+            Set::of(static fn() => new Add),
         );
 
         yield $prove->property(
             ZeroIsAnIdentityValue::class,
-            Set::of(new Add),
+            Set::of(static fn() => new Add),
         );
     })
     ->exit();
diff --git a/documentation/index.md b/documentation/index.md
index 951e4501..f02df5cb 100644
--- a/documentation/index.md
+++ b/documentation/index.md
@@ -10,7 +10,7 @@ BlackBox is a [Property Based Testing](https://en.wikipedia.org/wiki/Software_te
 
 It leverages randomness to prove the correctness of your code.
 
-It's the main testing framework for the [Innmind ecosystem](https://innmind.github.io/documentation/).
+It's the main testing framework for the [Innmind ecosystem](https://innmind.org/documentation/).
 
 It allows to:
 
diff --git a/documentation/organization/index.md b/documentation/organization/index.md
index b1a87dc5..86b01254 100644
--- a/documentation/organization/index.md
+++ b/documentation/organization/index.md
@@ -6,13 +6,16 @@ Since it uses a `Generator` you can easily split them into multiple files:
 
 === "BlackBox"
     ```php title="blackbox.php"
-    use Innmind\BlackBox\Application;
+    use Innmind\BlackBox\{
+        Application,
+        Prove,
+    };
 
     Application::new([])
-        ->tryToProve(static function(): \Generator {
-            yield from (require 'proofs/file1.php')();
-            yield from (require 'proofs/file2.php')();
-            yield from (require 'proofs/etc.php')();
+        ->tryToProve(static function(Prove $prove): \Generator {
+            yield from (require 'proofs/file1.php')($prove);
+            yield from (require 'proofs/file2.php')($prove);
+            yield from (require 'proofs/etc.php')($prove);
         })
         ->exit();
     ```
@@ -22,16 +25,16 @@ Since it uses a `Generator` you can easily split them into multiple files:
     use Innmind\BlackBox\{
         Runner\Assert,
         Set,
+        Prove,
     };
 
-    return static function(): \Generator {
-        yield proof(
-            'Some proof',
-            given(Set\Integers::any()),
-            static function(Assert $assert, int $value) {
+    return static function(Prove $prove): \Generator {
+        yield $prove
+            ->proof('Some proof')
+            ->given(Set::integers()),
+            ->test(static function(Assert $assert, int $value) {
                 // your code here
-            },
-        );
+            });
     };
     ```
 
@@ -40,16 +43,16 @@ Since it uses a `Generator` you can easily split them into multiple files:
     use Innmind\BlackBox\{
         Runner\Assert,
         Set,
+        Prove,
     };
 
-    return static function(): \Generator {
-        yield proof(
-            'Some proof',
-            given(Set\Strings::any()),
-            static function(Assert $assert, int $value) {
+    return static function(Prove $prove): \Generator {
+        yield $prove
+            ->proof('Some proof')
+            ->given(Set::strings()),
+            ->test(static function(Assert $assert, int $value) {
                 // your code here
-            },
-        );
+            });
     };
     ```
 
@@ -58,10 +61,11 @@ Since it uses a `Generator` you can easily split them into multiple files:
     use Innmind\BlackBox\{
         Runner\Assert,
         Set,
+        Prove,
     };
 
-    return static function(): \Generator {
-        yield test(
+    return static function(Prove $prove): \Generator {
+        yield $prove->test(
             'Some proof',
             static function(Assert $assert) {
                 // your code here
diff --git a/documentation/phpunit.md b/documentation/phpunit.md
index 1b42fbff..7e6b35f1 100644
--- a/documentation/phpunit.md
+++ b/documentation/phpunit.md
@@ -115,7 +115,7 @@ Like this BlackBox is able to shrink a failing scenario. But to see the generate
 
 If you wish to migrate to BlackBox but don't want to rewrite all your existing tests you can run them directly via BlackBox.
 
-The first step is to prefix the `PHPUnit\Framework\TestCase` class with `Innmind\BlackBox\`.
+The first step is to prefix the `PHPUnit\*` classes with `Innmind\BlackBox\`.
 
 The second step is to load the tests like this:
 
@@ -126,9 +126,7 @@ use Innmind\BlackBox\{
 };
 
 Application::new()
-    ->tryToProve(function() {
-        yield from Load::testsAt('path/to/your/tests');
-    })
+    ->tryToProve(Load::directory('path/to/your/tests'))
     ->exit();
 ```
 
@@ -146,9 +144,9 @@ You can better integrate these proofs inside BlackBox via these changes:
 ```php title="MyTestCase.php" hl_lines="11 13 18"
 use Innmind\BlackBox\{
     PHPUnit\BlackBox,
+    PHPUnit\Framework\TestCase,
     Set,
 };
-use PHPUnit\Framework\TestCase;
 
 final class MyTestCase extends TestCase
 {
diff --git a/documentation/preface/terminology.md b/documentation/preface/terminology.md
index 6599fd4c..b110f927 100644
--- a/documentation/preface/terminology.md
+++ b/documentation/preface/terminology.md
@@ -73,8 +73,8 @@ If you build packages, you can expose these properties. This allows developers t
 
 Innmind uses this approach for packages such as:
 
-- [`innmind/filesystem`](https://innmind.github.io/Filesystem/) used by [`innmind/s3`](https://packagist.org/packages/innmind/s3)
-- [`formal/orm`](https://formal-php.github.io/orm/) to test its different adapters
+- [`innmind/filesystem`](https://innmind.org/Filesystem/) used by [`innmind/s3`](https://packagist.org/packages/innmind/s3)
+- [`formal/orm`](https://formal-php.org/orm/) to test its different adapters
 
 ## Shrinking
 
diff --git a/documentation/sets.md b/documentation/sets.md
index f4028342..131315e5 100644
--- a/documentation/sets.md
+++ b/documentation/sets.md
@@ -447,18 +447,6 @@ Set::of(...$values);
 
 This describes all the values that you put in (ie `#!php Set::of(true, false)` to describe booleans).
 
-### From a generator
-
-```php
-use Innmind\BlackBox\Set;
-
-Set::generator(static function() {
-    yield from $values;
-});
-```
-
-This describes values that you will provide via a `Generator`.
-
 ## Higher order `Set`s
 
 ### Composite