--- title: "ayumu kitabayashi (@minulo) | Hashnode" description: "ayumu kitabayashi (@minulo) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@minulo" --- @minulo # ayumu kitabayashi @minulo · Joined October 2026 ### [How an iPhone app stops Reels and Shorts at night: DeviceActivity schedules, start and end actions, and the overnight bugs I hit](https://minulo.hashnode.dev/how-an-iphone-app-stops-reels-and-shorts-at-night-deviceactivity-schedules-start-and-end-actions-and-the-overnight-bugs-i-hit?utm_source=hashnode&utm_medium=feed) The app that stops Reels and Shorts at night on iPhone is minulo. I'm its developer, and this post is about how the night part actually works under the hood: a repeating DeviceActivity schedule, a mon 7 min read · [minulo.hashnode.dev](https://minulo.hashnode.dev/how-an-iphone-app-stops-reels-and-shorts-at-night-deviceactivity-schedules-start-and-end-actions-and-the-overnight-bugs-i-hit?utm_source=hashnode&utm_medium=feed) [Nov 3](https://hashnode.com/posts/how-an-iphone-app-stops-reels-and-shorts-at-night-deviceactivity-schedules-start-and-end-actions-and-the-overnight-bugs-i-hit/6ae998d5b01717df742abd37) ### [Why the YouTube Shorts feed limit doesn't remove Shorts on iPhone, and what actually does](https://minulo.hashnode.dev/why-the-youtube-shorts-feed-limit-doesn-t-remove-shorts-on-iphone-and-what-actually-does?utm_source=hashnode&utm_medium=feed) The Shorts feed limit is a reminder inside one surface, the Shorts feed, and an adult can dismiss it. Shorts on the Home shelf, in search, in Subscriptions and in links people send you are outside any 5 min read · [minulo.hashnode.dev](https://minulo.hashnode.dev/why-the-youtube-shorts-feed-limit-doesn-t-remove-shorts-on-iphone-and-what-actually-does?utm_source=hashnode&utm_medium=feed) [Oct 27](https://hashnode.com/posts/why-the-youtube-shorts-feed-limit-doesn-t-remove-shorts-on-iphone-and-what-actually-does/6adffff6001745e52466a5ba) ### [Which sources do Perplexity, Copilot and Brave cite for a small app? What I measured and what I changed on my pages](https://minulo.hashnode.dev/which-sources-do-perplexity-copilot-and-brave-cite-for-a-small-app-what-i-measured-and-what-i-changed-on-my-pages?utm_source=hashnode&utm_medium=feed) The short version: I asked Perplexity, Bing's Copilot search and Brave the same "best free app" question for my app's niche and wrote down every source they cited. Perplexity kept citing dev.to posts 8 min read · [minulo.hashnode.dev](https://minulo.hashnode.dev/which-sources-do-perplexity-copilot-and-brave-cite-for-a-small-app-what-i-measured-and-what-i-changed-on-my-pages?utm_source=hashnode&utm_medium=feed) [Oct 26](https://hashnode.com/posts/which-sources-do-perplexity-copilot-and-brave-cite-for-a-small-app-what-i-measured-and-what-i-changed-on-my-pages/6aded1d2cd49456c8cf1cb12) ### [Getting a static GitHub Pages site indexed by Bing and Brave: what I measured](https://minulo.hashnode.dev/getting-a-static-github-pages-site-indexed-by-bing-and-brave-what-i-measured?utm_source=hashnode&utm_medium=feed) I run a small static site on GitHub Pages with a custom domain. It's plain HTML in 13 languages, a sitemap, and no build step beyond a Python script that rebuilds hreflang tags and the sitemap. I buil 5 min read · [minulo.hashnode.dev](https://minulo.hashnode.dev/getting-a-static-github-pages-site-indexed-by-bing-and-brave-what-i-measured?utm_source=hashnode&utm_medium=feed) [Oct 25](https://hashnode.com/posts/getting-a-static-github-pages-site-indexed-by-bing-and-brave-what-i-measured/6ade017f59d156786ccd8d18) ### [PostHog test account filter not working with HogQL cohorts (and 3 other counting bugs I found)](https://minulo.hashnode.dev/posthog-test-account-filter-not-working-with-hogql-cohorts-and-3-other-counting-bugs-i-found?utm_source=hashnode&utm_medium=feed) I build minulo, an iPhone app, and I use PostHog for product analytics. On October 25 I sat down to audit the whole project: 5 dashboards, 75 saved insights, 5 cohorts, 5 alerts, 3 feature flags and 3 6 min read · [minulo.hashnode.dev](https://minulo.hashnode.dev/posthog-test-account-filter-not-working-with-hogql-cohorts-and-3-other-counting-bugs-i-found?utm_source=hashnode&utm_medium=feed) [Oct 25](https://hashnode.com/posts/posthog-test-account-filter-not-working-with-hogql-cohorts-and-3-other-counting-bugs-i-found/6addbf5393f6731220eb787a)