fix: Remove the unexpected double TS builds.

src/Project.ts

@@ -62,12 +62,7 @@ export default class Project extends BaseProject {
       preferLocal: true,
     });
 
-    const result = await this.buildPromise;
-
-    // Remove the promise so the build can be ran again
-    delete this.buildPromise;
-
-    return result;
+    return this.buildPromise;
   }
 
   @Memoize()

src/components/ArtifactRow.tsx

@@ -2,11 +2,11 @@ import React from 'react';
 import { Box } from 'ink';
 import Spinner from 'ink-spinner';
 import { Style } from '@boost/cli';
-import { formatMs } from '@boost/common';
 import Artifact from '../Artifact';
 import BundleArtifact from '../BundleArtifact';
 import { STATE_LABELS } from '../constants';
 import BundleTarget from './BundleTarget';
+import Duration from './Duration';
 import Target from './Target';
 
 export interface ArtifactRowProps {
@@ -35,9 +35,7 @@ export default function ArtifactRow({ artifact }: ArtifactRowProps) {
 
       <Box marginLeft={1}>
         {artifact.isComplete() ? (
-          <Style type="default" bold>
-            {formatMs(artifact.buildResult.time)}
-          </Style>
+          <Duration time={artifact.buildResult.time} />
         ) : (
           <Style type="muted">{STATE_LABELS[artifact.state]}</Style>
         )}

src/components/Duration.tsx

@@ -0,0 +1,17 @@
+import React from 'react';
+import { Style } from '@boost/cli';
+import { formatMs } from '@boost/common';
+
+export interface DurationProps {
+  time: number;
+}
+
+export default function Duration({ time }: DurationProps) {
+  const isFast = time <= 100;
+
+  return (
+    <Style type={isFast ? 'muted' : 'default'} bold>
+      {isFast ? '↝' : formatMs(time)}
+    </Style>
+  );
+}