diff --git a/plugins/backstage-plugin-coder/config.d.ts b/plugins/backstage-plugin-coder/config.d.ts
new file mode 100644
index 0000000..6262c53
--- /dev/null
+++ b/plugins/backstage-plugin-coder/config.d.ts
@@ -0,0 +1,63 @@
+export interface Config {
+  /**
+   * Properties that concern your Coder deployment.
+   * @visibility frontend
+   */
+  deployment: Readonly<{
+    /**
+     * The URL where your Coder deployment can be found.
+     * @visibility frontend
+     */
+    accessUrl: string;
+  }>;
+
+  /**
+   * Properties that concern the creation and manipulation of individual
+   * workspaces from within your Coder deployment.
+   *
+   * @visibility frontend
+   */
+  workspaces: Readonly<{
+    /**
+     * The default workspace creation mode to use when making a new workspace
+     * from Backstage to Coder.
+     *
+     * This value can be overwritten with the `mode` property from a repo's
+     * app-config.yaml file.
+     * @visibility frontend
+     */
+    defaultMode?: import('./src/hooks/useCoderWorkspacesConfig').WorkspaceCreationMode;
+
+    /**
+     * The name of the template that will be used by default when creating a new
+     * workspace.
+     *
+     * This value can be overwritten with the `templateName` property from a
+     * repo's app-config-yaml file.
+     * @visibility frontend
+     */
+    defaultTemplateName?: string;
+
+    /**
+     * The set of workspace parameters to pass to the Coder deployment when
+     * making a new workspace.
+     *
+     * If a `config` property is defined in app-config.yaml, the keys from the
+     * base Backstage config and the keys from the repo's app-config file will
+     * be merged, with the repo params always winning any key conflicts.
+     * @visibility frontend
+     */
+    params?: Record<string, string | undefined>;
+
+    /**
+     * The key that defines where the URL to a repo can be found from a
+     * template.
+     *
+     * Multiple keys can be defined. In the event that there are multiple keys
+     * that provide repo information, the first key in the array will always be
+     * chosen.
+     * @visibility frontend
+     */
+    repoUrlParamKeys: readonly string[];
+  }>;
+}
diff --git a/plugins/backstage-plugin-coder/package.json b/plugins/backstage-plugin-coder/package.json
index 1d21b96..9dc60de 100644
--- a/plugins/backstage-plugin-coder/package.json
+++ b/plugins/backstage-plugin-coder/package.json
@@ -63,7 +63,8 @@
     "msw": "^1.0.0"
   },
   "files": [
-    "dist"
+    "dist",
+    "config.d.ts"
   ],
   "keywords": [
     "backstage",
@@ -73,5 +74,6 @@
     "ide",
     "vscode",
     "jetbrains"
-  ]
+  ],
+  "configSchema": "config.d.ts"
 }
diff --git a/plugins/backstage-plugin-coder/src/components/CoderProvider/CoderAppConfigProvider.tsx b/plugins/backstage-plugin-coder/src/components/CoderProvider/CoderAppConfigProvider.tsx
index e342229..a8443f1 100644
--- a/plugins/backstage-plugin-coder/src/components/CoderProvider/CoderAppConfigProvider.tsx
+++ b/plugins/backstage-plugin-coder/src/components/CoderProvider/CoderAppConfigProvider.tsx
@@ -3,25 +3,9 @@ import React, {
   createContext,
   useContext,
 } from 'react';
-import type { WorkspaceCreationMode } from '../../hooks/useCoderWorkspacesConfig';
+import type { Config as CoderAppConfig } from '../../../config.d.ts';
 
-export type CoderAppConfig = Readonly<{
-  deployment: Readonly<{
-    accessUrl: string;
-  }>;
-
-  // Type is meant to be used with YamlConfig from useCoderWorkspacesConfig;
-  // not using a mapped type because there's just enough differences that
-  // maintaining a relationship that way would be a nightmare of ternaries
-  workspaces: Readonly<{
-    defaultMode?: WorkspaceCreationMode;
-    defaultTemplateName?: string;
-    params?: Record<string, string | undefined>;
-
-    // Defined like this to ensure array always has at least one element
-    repoUrlParamKeys: readonly [string, ...string[]];
-  }>;
-}>;
+export type { Config as CoderAppConfig } from '../../../config.d.ts';
 
 const AppConfigContext = createContext<CoderAppConfig | null>(null);
 
diff --git a/plugins/backstage-plugin-coder/src/hooks/useCoderWorkspacesConfig.ts b/plugins/backstage-plugin-coder/src/hooks/useCoderWorkspacesConfig.ts
index 67bbb55..a9ac2ac 100644
--- a/plugins/backstage-plugin-coder/src/hooks/useCoderWorkspacesConfig.ts
+++ b/plugins/backstage-plugin-coder/src/hooks/useCoderWorkspacesConfig.ts
@@ -1,7 +1,7 @@
 import { useMemo, useState } from 'react';
 
 import {
-  type Output,
+  type InferOutput,
   literal,
   object,
   optional,
@@ -30,7 +30,9 @@ const workspaceCreationModeSchema = optional(
   ),
 );
 
-export type WorkspaceCreationMode = Output<typeof workspaceCreationModeSchema>;
+export type WorkspaceCreationMode = InferOutput<
+  typeof workspaceCreationModeSchema
+>;
 
 // Very loose parsing requirements to make interfacing with various kinds of
 // YAML files as easy as possible
@@ -57,7 +59,7 @@ const yamlConfigSchema = union([
  * repo's catalog-info.yaml file. The entire value will be undefined if a repo
  * does not have the file
  */
-export type YamlConfig = Output<typeof yamlConfigSchema>;
+export type YamlConfig = InferOutput<typeof yamlConfigSchema>;
 
 /**
  * Provides a cleaned and pre-processed version of all repo data that can be