How we built "Oyasumi Shower" in 24 Hours. おやすみシャワーができるまで

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How We Built “Oyasumi Shower” in 24 Hours ͓΍͢Έγϟϫʔ͕Ͱ͖Δ·Ͱ Yoji Shidara Team OyasumiSupport#end_of_day Enishi Tech Inc.

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Let me introduce ·ͣ͸͡Ίʹ

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the most important Japanese word ԿΑΓ΋େࣄͳ೔ຊޠΛ ͝঺հ͠·͢

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in my talk :) ͜ͷൃදͷதͰ Ұ൪େࣄͳ೔ຊޠ͔΋

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“Oyasumi” ʮ͓΍͢Έʯ

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Do you know “Oyasumi”? ޚଘ஌Ͱ͔͢ʁ

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Repeat after me :) ΋͏Ұ౓!

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“Oyasumi” ʮ͓΍͢Έʯ

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“Oyasumi” means ʮ͓΍͢Έʯͱ͍͏ͷ͸

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“Good night” “Good night” ͷ͜ͱͰ͢

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So, ͔ͩΒ

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Tonight, after you get drunk, ࠓ໷͔ͬ͢Γਲͬ෷ͬͯ ؼΔͱ͖ʹ͸ɺ

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Say “Oyasumi” ʮ͓΍͢ΈʯΛ ࢖ͬͯΈ͍ͯͩ͘͞

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Let me back to the title... λΠτϧʹ໭Γ·͢

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How We Built “Oyasumi Shower” in 24 Hours ͓΍͢Έγϟϫʔ͕Ͱ͖Δ·Ͱ Yoji Shidara Team OyasumiSupport#end_of_day Enishi Tech Inc.

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Let me switch to Japanese... ͦΖͦΖ೔ຊޠͰ...

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We built “Oyasumi Shower” ࢲͨͪ͸ ʮ͓΍͢Έγϟϫʔʯͱ͍͏ ϓϩμΫτΛ

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for the 24-hour Hackathon Competition. 24࣌ؒͰ։ൃ͠ ίϯςετʹԠื͠·ͨ͠

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We won the “special prize” ͦͯ͠ ಛผ৆Λड৆͠·ͨ͠

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CC-BY 2.0 http://www.ﬂickr.com/photos/sora_h/7326377068/

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During the process, ͦͷͳ͔Ͱ

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we’ve found some “tips” to enjoy the contest. ίϯςετΛָ͠ΉίπΛ ͍͔ͭ͘ݟ͚ͭ·ͨ͠

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Today, I want to share our tips with you. ͦΕΛΈͳ͞Μͱ ڞ༗͍ͨ͠ͱࢥ͍·͢

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You might say, ΋͔͢͠Δͱ

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Just a contest. ͨͩͷίϯςετ͡Όͳ͍͔

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Just 24 hours. ͨͬͨ24࣌ؒ͡Όͳ͍͔

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Right. ͦ͏ࢥ͏͔΋͠Ε·ͤΜ

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Just a contest. ͔ͨ͠ʹίϯςετͩ͠

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Just 24 hours. ͨͬͨ24࣌ؒͷ͜ͱͰ͢

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But... ͚ͩͲ...

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Our life is just a series of 24 hours. ࢲͨͪͷ೔ʑͱ͍͏ͷ͸ ͦͷ24࣌ؒͷ࿈ଓ͔ͩΒ

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Thinking about how to enjoy the whole 24-hour 24࣌ؒͷָ͠ΈํΛ ߟ͑Δ͜ͱ͸

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leads us to think about how to enjoy our life. Ͳ͏΍ͬͯ೔ʑΛָ͠Ή͔ʹ ͭͳ͕͍ͬͯΔͱࢥ͏ͷͰ͢

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So, I want to share our tips with you. ͔ͩΒ ͦͷίπΛΈͳ͞Μͱ ڞ༗͍ͨ͠ͱࢥ͍·͢

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How we code is Ͳ͏͍͏;͏ʹͯ͠ίʔυΛ ॻ͍͍ͯ͘ͷ͔ͱ͍͏ͷ͸

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how we live, ͲͷΑ͏ʹੜ͖͍͔ͯ͘ ͱ͍͏͜ͱʹҧ͍ͳ͍

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for us, programmers. ࢲͨͪ͸ϓϩάϥϚ͔ͩΒ

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Through the contest, I want to think about that. ίϯςετΛ௨ͯ͡ ͦͷ͜ͱʹ͍ͭͯߟ͑·͢

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About “Oyasumi Shower”. ͓΍͢Έγϟϫʔʹ͍ͭͯ ͓࿩͠·͠ΐ͏

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We built it for COOKPAD 24-hour Hackathon Competition. ΫοΫύου ։ൃίϯςετ24ͷͨΊʹ ࢲୡ͕ͭͬͨ͘ϓϩμΫτͰ͢

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The contest is to develop applications based on the theme. ίϯςετͰ͸ ՝୊Λղܾ͢Δ։ൃΛ 24࣌ؒͰߦ͍·͢

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The challenge of this year was ࠓ೥ͷ՝୊͸

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“Create a service that will make the day end on a fun note.” “Ұ೔ͷऴΘΓΛ ָ͘͢͠Δ΋ͷ”

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Our product was an iPhone app to share “Oyasumi” ࢲୡ͕࡞ͬͨͷ͸ ʮ͓΍͢ΈʯΛڞ༗͢Δ iPhone ΞϓϦέʔγϣϯͰ͢

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The traditional “Oyasumi” was only for the closest people. ैདྷͷʮ͓΍͢Έʯ͸ ͘͝਌͍ؒ͠ฑͷ ͨΊͷ΋ͷͰͨ͠

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With “Oyasumi Shower”, you can exchange “Oyasumi” across time and space. ͓΍͢ΈγϟϫʔΛ࢖͏ͱ ʮ͓΍͢ΈʯମݧΛ ۭ࣌Λ௒͑ͯ޿͘ڞ༗Ͱ͖·͢

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Demo movie (I’ll try to translate...) σϞಈըΛ͝ཡ͍ͩ͘͞

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When you start “Oyasumi Shower”, ʮ͓΍͢ΈγϟϫʔʯΛ ىಈ͢Δͱɺ

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A chorus of “Oyasumi” comes from your iPhone. ΈΜͳͷʮ͓΍͢Έʯ͕ iPhone͔Βฉ͖͑ͯ͜·͢

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Then, you record and your “Oyasumi” for the others. ͜ͷ͋ͱʹདྷΔਓͷͨΊʹ ͋ͳͨͷʮ͓΍͢ΈʯΛ ࿥Ի͠·͢

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Someone uses the app after you will hear your Oyasumi. ͦͷ͋ͱʹདྷͨਓ͕ ͋ͳͨͷʮ͓΍͢ΈʯΛ ฉ͘͜ͱ͕Ͱ͖·͢

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9 am Start! 3 pm 9 pm 3 am

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How will you spend the 24 hours? ͋ͳͨͳΒͲ͏࢖͍·͔͢ʁ

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9 am Start! 3 pm 9 pm 3 am

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Our 24 hours were like this: ࢲୡͷ24࣌ؒ͸ ͜Μͳײ͡Ͱͨ͠

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Concept making Tech survey Distribution & Deployment Chores Submit! Preparation for application Naming discussion Adding one-more feature Movie making 9 am Prototyping Making it shippable Packaging Start! 3 pm 9 pm 3 am

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How do you feel? Ͳ͏ײ͡·ͨ͠?

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In order to tell you how we decided what to make for the contest, ԿΛͭ͘Δͷ͔Λ Ͳ͏΍ܾͬͯΊ͔ͨΛ ঺հ͢ΔͨΊʹ

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I need to talk about our team. ·ͣࢲୡʹ͍͓ͭͯ࿩͠·͢

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Team OyasumiSupport#end_of_day

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I live in Sapporo. The other members live in Tokyo. ࢲ͸ࡳຈʹ ଞͷϝϯόʔ͸౦ژʹ ॅΜͰ͍·͢

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Team OyasumiSupport#end_of_day Sapporo, Hokkaido Omori, Tokyo Kamata, Tokyo

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We’ve used PlayStation 3’s video chat and Skype. ओʹϓϨΠεςʔγϣϯ3ͷ ϏσΦνϟοτͱ Skype Λ࢖͍·ͨ͠

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A member had to commute soon after the contest started. ͋Δϝϯόʔ͕ ίϯςετ։࢝௚ޙʹిंʹ ৐Δඞཁ͕͋Γ·ͨ͠

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Unfortunately. Fortunately. ࢒೦ͳ͕Β ͍͑ɺ޾ӡͳ͜ͱʹ

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He was on the train with earphones. We talked online and he heard. ൴͸ిं಺ͰΠϠϗϯΛ͚ͭͯ ࢲୡͷձ࿩Λฉ͍͍ͯ·ͨ͠

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We heard his surroundings. We felt like really being there. ࢲୡʹ͸ࡶ౿͕ฉ͖͑ͯͯ͜ ྟ৔ײͨͬ΀ΓͰͨ͠

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As he couldn’t say anything, we’ve tried to make him laugh. ిं಺Ͱ͸੠Λग़ͤͳ͍ͷΛ ͍͍͜ͱʹ ๻Β͸൴Λ সΘͤΑ͏ͱͨ͠Γ͠·ͨ͠

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We enjoyed that time so much and felt “sounds” are so fun. ͦ͏͜͏͍ͯ͠Δ͏ͪ Իͬͯ໘ന͍ͳͱײ͡·ͨ͠

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Without it, we couldn’t have reached to the key concept of Oyasumi Shower. ͦΕ͕ͳ͔ͬͨΒ͓΍͢Έγϟ ϫʔͷΩʔίϯηϓτʹ͸ ౸ୡͰ͖ͳ͔ͬͨ͜ͱͰ͠ΐ͏

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In this way, we decided to use “sounds”. ͦΜͳ෩ʹͯ͠ ԻΛ࢖͏͜ͱʹͳΓ·ͨ͠

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The best word to exchange at the end of the day is Ұ೔ʹ࠷ޙʹԻΛަ׵͢Δ ͱ͍͑͹

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Oyasumi ʮ͓΍͢ΈʯͰ͢ΑͶ

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What I am talking about? Կͷ࿩Ͱ͚ͨͬ͠

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Tip: Prank is the source of ideas. ѱϊϦ͸ΞΠσΟΞͷݯ

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We are “voting” ideas while laughing. ๻Β͸স͍ͬͯΔؒʹ ໘ന͍ΞΠσΟΞΛ બผ͍ͯ͠ΔͷͰ͢

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Interesting ideas keep us funny long time. (As we want to have fun!) ໘ന͍ΞΠσΟΞʹ͍ͭͯ ࿩͢ͱ͖ ϫΠϫΠ͸ࢭ·Βͳ͍

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Then how to record and playback the sound? Ͳ͏΍ͬͯԻΛ ࿥Իͨ͠Γ࠶ੜͨ͠Γ ͢ΔͱΑ͍Ͱ͠ΐ͏

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We decided to make an iPhone app iPhone ΞϓϦΛͭ͘Ζ͏ ͱ͍͏͜ͱʹͳΓ·ͨ͠

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Where to exchange “Oyasumi”? ʮ͓΍͢Έʯͬͯݴ͏ͷ͸ Ͳ͜Ͱ͠ΐ͏ʁ

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Bedrooms in common. ৸͕͓͓͍ࣨͷͰ͸

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Few people use laptops in their bedroom (except us) ৸ࣨͰPCΛ࢖͏ਓ͸ ͦ͏ଟ͘ͳ͍͸ͣ

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But no one had experience to treat audio on iPhone νʔϜͷ୭΋ iPhoneͰԻ੠Λѻͬͨ ܦݧ͸͋Γ·ͤΜͰͨ͠

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We challenged! ͚ΕͲ ௅ઓͯ͠Έ·ͨ͠

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As we had Rails experience, Rails ͷܦݧ͸͋ͬͨͷͰ

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we could build a web service to exchange “Oyasumi” text messages. ςΩετϝοηʔδͰ ͓΍͢ΈΛަ׵͢Δ αΠτͳΒ͙͢࡞Εͦ͏Ͱͨ͠

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But that idea didn’t attract us. Ͱ΋͋Μ·Γָͦ͠͏ʹ͸ ࢥ͑ͳ͔ͬͨ

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So we tried to build iPhone app ͔ͩΒ iPhone ΞϓϦΛ ͭͬͯ͘ΈΔ͜ͱʹ͠·ͨ͠

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As building native apps in 24 hours seemed to be too diﬃcult for us, ωΠςΟϒΞϓϦέʔγϣϯ͸ 24࣌ؒͰ͸खʹ༨ΔͷͰ

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Cordova (PhonGap) was chosen Cordova (PhoneGap) Λ ࢖͍·ͨ͠

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We did timeboxed survey for feasibility evaluation. ࣮ݱՄೳੑΛௐ΂ΔͨΊʹ ࣌ؒΛ۠੾ͬͯௐࠪ͠·ͨ͠

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And we thought we could go! ͦͷ··ਐΊͦ͏ͩͱ͍͏ ײ৮Λಘ·ͨ͠

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Doing things that seem easy is not exciting. ؆୯ͦ͏ʹࢥ͑Δ͜ͱ͸ ϫΫϫΫ͠ͳ͍

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Tip: Do the right-level challenge ͪΐ͏Ͳ͍͍௅ઓΛ͢Δ

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We used Sinatra for the backend. Sinatra ΛόοΫΤϯυʹ ࢖͍·ͨ͠

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Just receive the audio, mixup them and return back to the client. Ի੠Λड৴͠ɺ߹੒ͯ͠ ΫϥΠΞϯτʹฦ͠·͢

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This didn’t take so long. Thanks to ruby :) ͜ͷ෦෼͸ൺֱత୹͍࣌ؒͰ Ͱ͖·ͨ͠

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I was familiar with it. ׳Ε͍ͯͨͱ͍͏ͷ΋େࣄͰ͢

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We had no time to learn the deployment for the rack apps. Rack ΞϓϦέʔγϣϯͷ σϓϩΠํ๏Λௐ΂͍ͯͨΒ ؒʹ߹Θͳ͔ͬͨ͜ͱͰ͠ΐ͏

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We did challenge in some part, and did not in the other part. ௅ઓͨ͠ͱ͜Ζ΋͋Δ͠ ͠ͳ͔ͬͨͱ͜Ζ΋͋Γ·͢

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In order to have a good challenge, we need to complete the other part. Α͍௅ઓ͢ΔͨΊʹ͸ ͦ͏Ͱͳ͍෦෼Λ͖ͪΜͱ ࡁ·ͤΔඞཁ͕͋Γ·͢

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To do so, ͔ͩΒେࣄͳͷ͸

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Tip: Have tools lie comfortably with your hand in your toolbox. खʹೃછΜͩಓ۩Λ ಓ۩ശʹೖΕ͓ͯ͘

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In the ﬁrst 6 hours, we made a prototype ։͔࢝Β6࣌ؒܦաͯ͠ ϓϩτλΠϓ͕ग़དྷ͖ͯ·ͨ͠

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that could record “Oyasumi”, send it to the server, receive and playback. ࿥Իɺαʔόʹૹ৴ɺ αʔό͔Βड৴ͨ͠Ի੠Λ࠶ੜ ͢Δͱ͜Ζ·Ͱ͖·ͨ͠

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We could experience the app by hitting buttons in the right order. ॱংྑ͘ϘλϯΛԡ͢͜ͱͰ ΞϓϦΛମݧͰ͖Δͱ͜Ζ·Ͱ ͖·ͨ͠

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We felt we can go as it was fun enough for us. ͦΕ͸ָ͍͠ମݧͩͬͨͷͰ ͜Ε͸͍͚Δͱ͍͏ؾ࣋ͪʹ ͳ͖ͬͯ·ͨ͠

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With the prototype, we proceeded discussion about the Oyasumi UX. ϓϩτλΠϓΛ࢖͍ͳ͕Β ͋Δ΂͖Ϣʔβମݧͷݕ౼Λ ͢͢Ί͍͖ͯ·ͨ͠

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Tip: A working prototype is worth a thousand words ಈ͘΋ͷΛ৮ͬͯΈΔͷ͕େࣄ

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Next, we tried to ﬁnish chores for release. ࣍ʹϦϦʔεͷ४උΛ ࡁ·ͤΔ͜ͱʹ͠·ͨ͠

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Don’t you feel too early? ૣ͗͢ͳ͍ʁͬͯࢥ͍·ͨ͠ʁ

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iPhone apps seemed to be diﬃcult to deploy. iPhoneΞϓϦΛ ϦϦʔε͢Δͷ͸େมͦ͏ͩ ͱ͍͏ෆ͕҆͋Γ·ͨ͠

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If we couldn’t submit the app, we were far from the start line of the contest. ΞϓϦΛެ։Ͱ͖ͳ͍Α͏Ͱ͸ ελʔτϥΠϯʹ͢Βཱͯͳ͍

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We reduced that risk. ͔ͩΒ ϦεΫΛݮΒ͢͜ͱʹ͠·ͨ͠

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Also, capistrano was conﬁgured for the backend. As usual :) όοΫΤϯυ͸ capistrano Ͱ σϓϩΠ͢ΔΑ͏ʹ͠·ͨ͠ ׳Εͨ΋ͷͰ͢:)

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Tip: Can’t be done before shipping ϦϦʔεͰ͖ͳ͍ͱ ελʔτϥΠϯʹ΋ཱͯͳ͍

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What we had at that time was just a mock. ͜ͷ࣌఺Ͱखݩʹ͋ͬͨͷ͸ ͨͩͷϞοΫͰͨ͠

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Playing with the prototype, we designed the user experience. ϓϩτλΠϓͰ༡ͼͳ͕Β ͋Δ΂͖ϢʔβମݧΛ ߟ͍͖͑ͯ·ͨ͠

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At this time, We had a kaigi to name the product. ͜ͷλΠϛϯάͰ ϓϩμΫτ໊ܾఆձٞ΋ ࣮ࢪ͠·ͨ͠

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Of course, the meeting was so prankish :) ѱϊϦձٞͰ͢

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For example, “OyaaS : Oyasumi as a Service” ͓΍ʔ͢ͱ͔

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We found the name “Oyasumi Shower” ʮ͓΍͢Έγϟϫʔʯ ͱ͍͏໊લΛݟ͚ͭ·ͨ͠

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And we got the phrase “sleep after taking Oyasumi Shower” ʮ͓΍͢ΈͷγϟϫʔΛ ཋͼͯ৸Δʯ ͱ͍͏ϑϨʔζ΋ݟ͚ͭ·ͨ͠

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After that, the product goal was concreted. ͦΕ͔Βํ޲ੑ͕ ͖ͪΜͱݻ·Γ·ͨ͠

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As you know, naming is important! ໊લॏཁͰ͢Ͷ

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Tip: The right name leads the product to the right way Α໊͍લ͕ݟ͔ͭΔͱ ໊લ͕ϓϩμΫτΛಋ͍ͯ͘ΕΔ

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Then we coded. ͲΜͲΜ࡞͍͖ͬͯ·͢

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Transitions of screens were implemented. Artworks were integrated. ը໘ભҠͷ࡞Γ͜Έͱ ΞʔτϫʔΫ΋ ૊Έࠐ·Ε·ͨ͠

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We prepared to ﬁll the application form. ฒߦͯ͠Ԡืͷ४උΛ͠·͢

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It’s super important because we couldn’t ﬁnish without it. Ԡื͠ͳ͍͜ͱʹ͸ ࿩ʹͳΒͳ͍ͷͰ͜Ε͸ ͱͯ΋ॏཁͰ͢

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After the form is completed, we ﬁnally became able to release it anytime we want. ԠืϑΥʔϜͷ४උ͕Ͱ͖ͯ ͍ͭͰ΋ϦϦʔεͰ͖Δ ঢ়ଶʹ౸ୡ͠·ͨ͠

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Done! Ͱ͖ͨ!

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We chose one feature to add as we have injury time :) ͕࣌ؒ·ͩ͋ͬͨͷͰ ࣍ʹ௥Ճ͢ΔϑΟʔνϟΛ Ұͭબͼ·ͨ͠

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The feature was implemented keeping the product shippable. ϓϩμΫτΛग़ՙՄೳʹ อͪͭͭ ͦͷ࣮૷΋׬ྃ͠·ͨ͠

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We made the movie just you saw as we still have the time. ·͕ͩ࣌ؒ͋ͬͨͷͰ ঺հͷϏσΦ΋࡞੒͠·ͨ͠

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It was so funny to make a movie saying “Oyasumi” in the morning. ΋͏ேͩͬͨͷͰ ͓΍͢ΈͷϜʔϏʔΛͭ͘Δͷ͸ ͔ͳΓস͑·ͨ͠

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Tip: Make it shippable, then keep it shippable. ͍ͭͰ΋ϦϦʔεՄೳͳঢ়ଶ ʹ΋͍͖ͬͯ ͦͷঢ়ଶΛอͭ

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Think Prototype Make it Shippable! Keep it Shippable! Done! Our “Process” Shippable! Time is up! Good concept!

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To be honest, we jumped the gun. ࣮͸ࢲͨͪ͸ ϑϥΠϯά͍ͯ͠·ͨ͠

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Server setup 9 am Start! 3 pm 9 pm 3 am Strategy meeting The day before!

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We held a strategy meeting the day before. VPS is conﬁgured before the contest. ࡞ઓձٞ΋͍ͯ͠·ͨ͠͠ ίϯςετલʹ VPSΛηοτΞοϓ͠·ͨ͠

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Not only that! ͦΕ͚ͩͰ͸ͳ͍͚Ͳ!

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We are old friends. ݹ͔͘Βͷ༑ਓͰ

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Three of us won the special prize at the contest of the last year. νʔϜͷ͏ͪ3ਓ͸ ڈ೥΋ίϯςετʹࢀՃ͍ͯͯ͠ ಛผ৆Λड৆͍ͯ͠·͢

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We have shared so long time and we know well each other. ͓ޓ͍ͷ͜ͱΛ Α͘஌͍ͬͯ·͢

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We know what he is good at, or not. Կ͕ಘҙͰԿ͕ۤख͔΋ Α͘Θ͔͍ͬͯ·͢

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We know what we like, or not. Կ͕޷͖ͰԿ͕޷͖Ͱͳ͍͔΋ ͓ޓ͍ʹΘ͔͍ͬͯ·͢

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This should be one reason why we could make good decisions. ͔ͩΒνʔϜ͕Α͍൑அΛ ͠΍͔ͬͨ͢ͷͰ͸

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Of course, our decisions are not always good :) ͍ͭ΋Α͍ܾఆ͕Ͱ͖Δͱ͸ ݶΒͳ͍͚ΕͲ

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At least, we don’t need much time to reach an agreement. গͳ͘ͱ΋ ͳ͔ͳ͔߹ҙͰ͖ͳ͍ ͱ͍͏͜ͱ͸গͳ͍

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We don’t need to start probing the intentions of others. ෲͷ͙͞Γ͍͔͋Β ෺ࣄΛ࢝ΊΔඞཁ͸ͳ͍

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Because we know each other well. ͓ޓ͍ͷ͜ͱΛ Α͘஌͍ͬͯΔ͔Β

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Tasks were taken by the best person without much discussion. ؾ͕ͭ͘ͱҰ൪ద੾ͳਓ͕ ࣗવͱͦͷ࡞ۀΛ΍͍ͬͯΔ

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It seems quite natural. ͱͯ΋ࣗવͳײ͕͡͠·͢

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Tip: Just know each other. Tasks will ﬁt into the best place. ͓ޓ͍ΛΑ͘஌Δͱ λεΫ͕ͪΐ͏Ͳྑ͍ॴʹ Ҡಈ͢ΔΑ͏ʹͳΔ

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One more thing. ΋͏ͻͱͭ

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We use same tools such as Ruby, Rails, IRC, PS3, Dropbox, FaceBook, ... ࢲͨͪ͸ಉ͡ಓ۩Λ ଟ͘࢖͍ͬͯ·͢

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This dramatically reduces the setup cost. ηοτΞοϓίετΛ ௿͘཈͑Δ͜ͱ͕Ͱ͖·͢

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Especially about communication tool, ͱ͘ʹίϛϡχέʔγϣϯʹ ͍ͭͯ͸

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We always try new tools. We like to try. ৽͍͠πʔϧ͕͋Δͱ ͻͱ௨Γࢼ͢Α͏ʹ͍ͯ͠·͢ (ͦΕָ͕͠Έ)

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But some behaviors do not appear while using with only 2 persons. 2ਓͩͱମݧͰ͖ͳ͍͜ͱ͕ ͚ͬ͜͏͋ΔͷͰ͢

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Tip: Try communication tools with at least 3 person. ίϛϡχέʔγϣϯπʔϧ͸ 3ਓҎ্Ͱࢼ͢ͱΑ͍

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Conclusion ·ͱΊ

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The most important: େࣄͳ͜ͱΛ΋͏Ұ౓

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“Oyasumi” means “Good night” ͓΍͢Έ͸ “Good Night” ͷ͜ͱ

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How to decide what to do? ͳʹΛ͢Δ͔Λ Ͳ͏΍ܾͬͯΊΔ͔

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Prank is the source of ideas. ѱϊϦ͸ΞΠσΟΞͷݯ

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The right name leads the product to the right way Α໊͍લ͕ݟ͔ͭΔͱ ໊લ͕ϓϩμΫτΛಋ͍ͯ͘ΕΔ

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A working prototype is worth a thousand words ಈ͘΋ͷΛ৮ͬͯΈΔͷ͕େࣄ

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Do the right-level challenge ͪΐ͏Ͳ͍͍௅ઓΛ͢Δ

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How things get done? Ͳ͏΍ͬͯ׬ྃͤ͞Δ͔

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Can’t be done before shipping ϦϦʔεͰ͖ͳ͍ͱ ελʔτϥΠϯʹ΋ཱͯͳ͍

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Make it shippable, then keep it shippable. ͍ͭͰ΋ϦϦʔεՄೳͳঢ়ଶ ʹ΋͍͖ͬͯ ͦͷঢ়ଶΛอͭ

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How we spend days? Ͳ͏΍ͬͯ೔ʑΛա͔͢͝

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Have tools lie comfortably with your hand in your toolbox खʹೃછΜͩಓ۩Λ ಓ۩ശʹ

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Just know each other. Tasks will ﬁt into the best place. ͓ޓ͍ΛΑ͘஌Δͱ λεΫ͕ͪΐ͏Ͳྑ͍ॴʹ Ҡಈ͢ΔΑ͏ʹͳΔ

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Try communication tools with at least 3 person. ίϛϡχέʔγϣϯπʔϧ͸ 3ਓҎ্Ͱࢼ͢ͱΑ͍

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While working with this team, ͜ͷ։ൃΛ ;Γ͔͑ͬͯΈΔͱ

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I feel everything was “natural”. ͱͯ΋ࣗવͩͱײ͡·͢

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What are behind this? ͜ͷޙΖʹ͸ Կ͕͋ΔΜͩΖ͏?

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Taken after we submitted our product. ͜ͷࣸਅ͸ ࡞඼Λ౤ߘͨ͋͠ͱʹ օͰࡱͬͨ΋ͷͰ͢

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The end of the contest for us. ίϯςετͷऴΘΓ

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After the festival, our days resumed. ͓ࡇΓͷ͋ͱ͸ ͍ͭ΋ͷ೔ʑ͕଴͍ͬͯ·͢

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The boundary. ͜Ε͕ڥ໨

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How happy we’d be if the our days are like this!? ͜Μͳ೔ʑΛૹΕͨΒ ޾ͤ!?

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Maybe I love the feelings because it was not everyday. ೔ৗ͡Όͳ͍͔Β ͍͍ͳ͋ͱࢥ͏͚ͩͳͷ͔΋

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Am I just seeking things I cannot reach? ແ͍΋ͷͶͩΓΛ ͍ͯ͠Δ͚ͩͳͷ͔΋

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Our life seems not so simple as we can do only what we want to do. ΍Γ͍ͨ͜ͱ͚ͩ ΍͍ͬͯΒΕΔ΄Ͳ ୯७Ͱ͸ͳͦ͞͏

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But I want to bridge the boundary. Ͱ΋ͦͷڥ໨ΛຒΊ͍ͨ

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Anyhow, our life is the series of 24 hours. ͍ͣΕʹͤΑ ೔ʑ͸24࣌ؒͷ࿈ͳΓͰͨ͠

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Thinking about how to enjoy whole the 24 hours ͦͷ24࣌ؒͷָ͠ΈํΛ ߟ͑Δ͜ͱ͸

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leads us to think about how to enjoy our life. Ͳ͏΍ͬͯ೔ʑΛָ͠Ή͔ʹ ͭͳ͕͍ͬͯΔ