diff --git a/src/cli/commands/default.ts b/src/cli/commands/default.ts
index a87ac9c..651aaf5 100644
--- a/src/cli/commands/default.ts
+++ b/src/cli/commands/default.ts
@@ -6,22 +6,47 @@ import { GlobalOptions } from "../types.ts";
 import { outputErrors } from "../../plugin/errors.ts";
 import { context } from "../../plugin/mod.ts";
 import { ensureFile } from "../../../deps.ts";
+import { errorCodes } from "../errors.ts";
+import { config } from "../../config/mod.ts";
 
 type DefaultOptions = GlobalOptions;
 
+const WARN_NOTHING_DETECTED = `
+Check the available stacks at the project README:
+https://github.com/pipelinit/pipelinit-cli#support-overview
+
+If your project has one of the available stacks and it
+wasn't detected by pipelinit, this is probably a bug. Please
+run pipelinit again with the --debug flag and open an issue here:
+https://github.com/pipelinit/pipelinit-cli/issues/new
+
+If you didn't see your stack there and wish it to be included,
+start a discussion proposing the new stack here:
+https://github.com/pipelinit/pipelinit-cli/discussions/new
+`;
+
 export default async function (opts: DefaultOptions): Promise<void> {
   await prelude(opts);
   const logger = context.getLogger("main");
   const detected = await introspect();
-  const platform = "github";
-  const files = await platformWriters[platform](
-    context,
-    renderTemplates(platform, detected),
-  );
-  for (const { path, content } of files) {
-    logger.info(`Writing ${path}`);
-    await ensureFile(path);
-    await Deno.writeTextFile(path, content);
+
+  if (Object.keys(detected).length === 0) {
+    logger.error(WARN_NOTHING_DETECTED);
+    Deno.exit(errorCodes.NO_STACK_DETECTED);
   }
+
+  const platforms = config.platforms!;
+  for (const platform of platforms) {
+    const files = await platformWriters[platform](
+      context,
+      renderTemplates(platform, detected),
+    );
+    for (const { path, content } of files) {
+      logger.info(`Writing ${path}`);
+      await ensureFile(path);
+      await Deno.writeTextFile(path, content);
+    }
+  }
+
   outputErrors();
 }
diff --git a/src/cli/errors.ts b/src/cli/errors.ts
new file mode 100644
index 0000000..10a8497
--- /dev/null
+++ b/src/cli/errors.ts
@@ -0,0 +1,3 @@
+export const errorCodes = {
+  NO_STACK_DETECTED: 2,
+};
diff --git a/src/cli/prelude/config.ts b/src/cli/prelude/config.ts
index 3176075..f1dfa12 100644
--- a/src/cli/prelude/config.ts
+++ b/src/cli/prelude/config.ts
@@ -2,6 +2,20 @@ import { Checkbox, log } from "../../../deps.ts";
 import { config } from "../../config/mod.ts";
 import { isPlatform } from "../../platform/mod.ts";
 
+// TODO
+// The handling of some specific key presses on Windows doesn't
+// work correclty in Deno. As a workaround, the checkbox prompt
+// uses "u" and "d" to navigate across options. This hint informs
+// that to the user. We should remove this hint when the expected
+// behavior (up and down arrow keys) are available.
+//
+// Keep an eye on those issues:
+// https://github.com/c4spar/deno-cliffy/issues/272
+// https://github.com/denoland/deno/issues/5945
+const NAV_HINT = Deno.build.os === "windows"
+  ? "Press <space> to select, use 'u' and 'd' keys to navigate"
+  : "Press <space> to select, use arrow keys to navigate";
+
 export async function configure() {
   const logger = log.getLogger("main");
   // Load the project config if it exists
@@ -15,9 +29,12 @@ export async function configure() {
   logger.info("Configure this project");
   const ciPlatforms = (await Checkbox.prompt({
     message: "Which platforms does this project use?",
+    minOptions: 1, // The user must select at least one
+    hint: NAV_HINT,
     options: [
       { name: "GitHub Actions", value: "github", checked: true },
       { name: "GitLab CI (coming soon)", value: "gitlab", disabled: true },
+      { name: "Travis CI (coming soon)", value: "travis", disabled: true },
     ],
   })).filter(isPlatform);
 
diff --git a/src/stack/introspection.ts b/src/stack/introspection.ts
index 3acb409..268dbc3 100644
--- a/src/stack/introspection.ts
+++ b/src/stack/introspection.ts
@@ -40,7 +40,11 @@ export async function introspect() {
   logger.info("Detecting stack...");
   const stack = await detected();
   const stackNames = stack.map((t) => t.name).sort().join(", ");
-  logger.info(`Detected stack: ${stackNames}`);
+  if (stackNames.length === 0) {
+    logger.warning("No stack detected!");
+  } else {
+    logger.info(`Detected stack: ${stackNames}`);
+  }
 
   const introspected = (await Promise.all(
     stack.map<Promise<Maybe<ProjectData>>>((introspector) =>