passed.jp

Category: Production

Category: Production

Articles in the "Production" category. Hands-on accounts of building and running things we have actually made and operate.

How english.passed.jp, a Free Junior-High English Problem Set, Came to Be — 8 Years, 1,000+ Questions, and Why It Stopped and Restarted

2026-07-20 18:45:00

english.passed.jp, Amazing engine's free junior-high English problem set: an internship student's insight, 1,000+ questions in 8 years, and an AI-era restart.

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Burning Grammar into Memory with Impossible English Sentences — How We Built the "Impact" Department

2026-06-25 16:25:00

How we built the Impact department on english.passed.jp: impossible English sentences as memory anchors for grammar, the YAML-driven build, and its limits.

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I Built the "Tool," a Voice to Talk With — A Fully Local, Free Voice AI Called "kit," as a Parallel System (Podcast Log #2)

2026-06-25 15:35:00

A technical record of kit, a voice AI bot that runs free on a single M1 Max with zero external APIs. Instead of the usual listen-then-think-then-reply line, kit runs listening, thinking, backchanneling, deep reasoning, and speaking in parallel, with a single Arbiter collapsing them into one verdict. Real function names, real config values, and the honest limits of one GPU.

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Overlooked Japanese Games, One Title at a Time: Why We Keep Growing next.games (Uncut)

2026-06-12 18:00:00

We keep quietly growing next.games (published in English as Uncut), where we introduce overlooked Japanese games to players abroad one title at a time. How we pick rough gems that sink on Steam without reaching ten reviews, how we write them up, why we don't stop, and one small sign: the Steam wishlist moved by about 0.36% the other day.

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One Trailer Cut Changed the Game Itself: When Marketing and Production Blur

2026-05-22 18:00:00

An essay on how editing a promotional video for my game ended up tightening the game itself. One pacing decision about a single cut changed the game's presentation timing and sent me back to re-edit the video. On why marketing and production converge on the same experience design.

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