docs: mention gocache as depot option

Signed-off-by: Chris Goller <goller@gmail.com>

Author: goller

README.md

@@ -20,6 +20,7 @@ Official CLI for [Depot](https://depot.dev) - you can use the CLI to build Docke
       - [Flags for `build`](#flags-for-build)
     - [`depot cache`](#depot-cache)
       - [`depot cache reset`](#depot-cache-reset)
+    - [`depot gocache`](#depot-gocache)
     - [`depot configure-docker`](#depot-configure-docker)
     - [`depot list`](#depot-list)
       - [`depot list projects`](#depot-list-projects)
@@ -265,6 +266,31 @@ Reset the cache of a specific project ID
 depot cache reset --project 12345678910
 ```
 
+### `depot gocache`
+
+Configure Go tools to use Depot remote cache.
+The Go tools will store build artifacts in the Depot cache, and retrieve them from the cache when building again.
+
+This requires Go 1.24 or later.
+
+Export the environment variable `GOCACHEPROG` to use the Depot cache.
+
+```shell
+export GOCACHEPROG='depot gocache'
+```
+
+Next, run your Go build commands as usual.
+
+```shell
+go build ./...
+```
+
+To set verbose output, add the --verbose option:
+
+```shell
+export GOCACHEPROG='depot gocache --verbose'
+```
+
 ### `depot configure-docker`
 
 Configure Docker to use Depot's remote builder infrastructure. This command installs Depot as a Docker CLI plugin (i.e., `docker depot ...`) and sets the Depot plugin as the default Docker builder (i.e., `docker build`).

pkg/cmd/gocache/gocache.go

@@ -56,7 +56,6 @@ func NewCmdGoCache() *cobra.Command {
 			p := NewCache(CacheServer, orgID, token, dir, verbose)
 			return p.Run(ctx)
 		},
-		Hidden: true,
 	}
 
 	flags := cmd.Flags()