diff --git a/docs/learn/102-dev.md b/docs/learn/102-dev.md
index 8ece8a12..9310473c 100644
--- a/docs/learn/102-dev.md
+++ b/docs/learn/102-dev.md
@@ -205,8 +205,8 @@ But wait: how did we know what fields were available in `yarn.#Package` and `net
 Answer: thanks to the `dagger doc` command, which prints the documentation of any package from [Dagger Universe](../reference/universe/README.md).
 
 ```shell
-dagger doc dagger.io/netlify
-dagger doc dagger.io/js/yarn
+dagger doc alpha.dagger.io/netlify
+dagger doc alpha.dagger.io/js/yarn
 ```
 
 You can also browse the [Dagger Universe](../reference/universe/README.md) reference in the documentation.
diff --git a/docs/learn/107-kubernetes.md b/docs/learn/107-kubernetes.md
index c617340a..8f86a96f 100644
--- a/docs/learn/107-kubernetes.md
+++ b/docs/learn/107-kubernetes.md
@@ -171,7 +171,7 @@ import (
 // set with `dagger input text kubeconfig -f ~/.kube/config`
 kubeconfig: string @dagger(input)
 
-// deploy uses the `dagger.io/kubernetes` package to apply a manifest to a
+// deploy uses the `alpha.dagger.io/kubernetes` package to apply a manifest to a
 // Kubernetes cluster.
 deploy: kubernetes.#Resources & {
   // reference the `kubeconfig` input above
@@ -199,7 +199,7 @@ gkeConfig: gke.#KubeConfig @dagger(input)
 
 kubeconfig: gkeConfig.kubeconfig
 
-// deploy uses the `dagger.io/kubernetes` package to apply a manifest to a
+// deploy uses the `alpha.dagger.io/kubernetes` package to apply a manifest to a
 // Kubernetes cluster.
 deploy: kubernetes.#Resources & {
   // reference the `kubeconfig` input above
@@ -227,7 +227,7 @@ eksConfig: eks.#KubeConfig @dagger(input)
 
 kubeconfig: eksConfig.kubeconfig
 
-// deploy uses the `dagger.io/kubernetes` package to apply a manifest to a
+// deploy uses the `alpha.dagger.io/kubernetes` package to apply a manifest to a
 // Kubernetes cluster.
 deploy: kubernetes.#Resources & {
   // reference the `kubeconfig` input above
@@ -245,7 +245,7 @@ This defines:
 
 - `kubeconfig` a _string_ **input**: kubernetes configuration (`~/.kube/config`)
   used for `kubectl`
-- `deploy`: Deployment step using the package `dagger.io/kubernetes`. It takes
+- `deploy`: Deployment step using the package `alpha.dagger.io/kubernetes`. It takes
   the `manifest` defined earlier and deploys it to the Kubernetes cluster specified in `kubeconfig`.
 
 ### Setup the environment
@@ -578,7 +578,7 @@ The following configuration will:
 - Declare a `repository` input as a `dagger.#Artifact`. This will be mapped to
   the source code directory.
 - Declare a `registry` input. This is the address used for docker push
-- Use `dagger.io/docker` to build and push the image
+- Use `alpha.dagger.io/docker` to build and push the image
 - Use the registry image reference (`push.ref`) as the image for the deployment.
 
 ```cue title="todoapp/kube/manifest.cue"
diff --git a/docs/learn/108-cloudformation.md b/docs/learn/108-cloudformation.md
index 416f01e2..b5cf74b4 100644
--- a/docs/learn/108-cloudformation.md
+++ b/docs/learn/108-cloudformation.md
@@ -135,7 +135,7 @@ template: """
 As our plan relies on [Cloudformation's relay](/reference/universe/aws/cloudformation), let's dissect the expected inputs by gradually incorporating them into our plan.
 
 ```shell
-dagger doc dagger.io/aws/cloudformation
+dagger doc alpha.dagger.io/aws/cloudformation
 # Inputs:
 #     config.region       string                                   AWS region
 #     config.accessKey    dagger.#Secret                           AWS access key
@@ -177,7 +177,7 @@ awsConfig: aws.#Config
 
 This defines:
 
-- `awsConfig`: AWS CLI Configuration step using the package `dagger.io/aws`. It takes three user inputs: a `region`, an `accessKey`, and a `secretKey`
+- `awsConfig`: AWS CLI Configuration step using the package `alpha.dagger.io/aws`. It takes three user inputs: a `region`, an `accessKey`, and a `secretKey`
 
 #### Setup the environment
 
diff --git a/docs/reference/universe/file.md b/docs/reference/universe/file.md
deleted file mode 100644
index d7be3274..00000000
--- a/docs/reference/universe/file.md
+++ /dev/null
@@ -1,84 +0,0 @@
----
-sidebar_label: file
----
-
-# dagger.io/file
-
-DEPRECATED: see dagger.io/os
-
-## #Append
-
-### #Append Inputs
-
-| Name             | Type                  | Description        |
-| -------------    |:-------------:        |:-------------:     |
-|*filename*        | `string`              |-                   |
-|*permissions*     | `*0o644 \| int`       |-                   |
-|*contents*        | `(string\|bytes)`     |-                   |
-|*from*            | `dagger.#Artifact`    |-                   |
-
-### #Append Outputs
-
-| Name             | Type              | Description        |
-| -------------    |:-------------:    |:-------------:     |
-|*orig*            | `string`          |-                   |
-
-## #Create
-
-### #Create Inputs
-
-| Name             | Type                 | Description        |
-| -------------    |:-------------:       |:-------------:     |
-|*filename*        | `string`             |-                   |
-|*permissions*     | `*0o644 \| int`      |-                   |
-|*contents*        | `(string\|bytes)`    |-                   |
-
-### #Create Outputs
-
-_No output._
-
-## #Glob
-
-### #Glob Inputs
-
-| Name             | Type                  | Description        |
-| -------------    |:-------------:        |:-------------:     |
-|*glob*            | `string`              |-                   |
-|*from*            | `dagger.#Artifact`    |-                   |
-
-### #Glob Outputs
-
-| Name             | Type              | Description                                       |
-| -------------    |:-------------:    |:-------------:                                    |
-|*filenames*       | `_\|_`            |trim suffix because ls always ends with newline    |
-|*files*           | `string`          |-                                                  |
-
-## #Read
-
-### #Read Inputs
-
-| Name             | Type                  | Description        |
-| -------------    |:-------------:        |:-------------:     |
-|*filename*        | `string`              |-                   |
-|*from*            | `dagger.#Artifact`    |-                   |
-
-### #Read Outputs
-
-| Name             | Type              | Description        |
-| -------------    |:-------------:    |:-------------:     |
-|*contents*        | `string`          |-                   |
-
-## #read
-
-### #read Inputs
-
-| Name             | Type                  | Description        |
-| -------------    |:-------------:        |:-------------:     |
-|*path*            | `string`              |-                   |
-|*from*            | `dagger.#Artifact`    |-                   |
-
-### #read Outputs
-
-| Name             | Type              | Description        |
-| -------------    |:-------------:    |:-------------:     |
-|*data*            | `string`          |-                   |