Somebody to Ruby - Speaker Deck

Somebody to Ruby

by Koichi ITO

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3BJMT%FWFMPQFST.FFUVQ 4BU 0SBDMF$PSQPSBUJPO+BQBO ג Ӭ࿨γεςϜϚωδϝϯτ ίϛϡχςΟϚωʔδϟ ҏ౻ߒҰ !LPJD 3VCZίϛϡχςΟͷา͖ํ 4PNFCPEZUP3VCZ

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!LPJD w $PNNVOJUZ.BOBHFS BU&4. *OD w 3VCP$PQ$PNNJUUFS w "30SBDMFFOIBODFE BEBQUFS$PNNJUUFS w $VDVNCFS$PNNJUUFS

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ސ໰ ೋਓ !LBLVUBOJ !BNBUTVEB Advisors

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044ίϛϡχςΟͱͷڞੜΛࢧԉ

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ۜ࠲3BJMTট଴ߨԋ 3VCP$PQίϛολʔʹΑΔ 3VCP$PQೖ໳ Ծ 5IV TUBSU $PNJOHTPPO

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w ϞώΧϯҰঋ w ఱ໌Ұ೥ख़੒Ұঋ w ௕௝༤ொੜҰঋ w ձ௡່͘͞Β࢛߹ w ࢒૲26&&/࢛߹ w ాञ͘͞Βϥϕϧ࢛߹ w ෱ॕ७େ௚἞Έ࢛߹ w Ԟೳొͦͷ·Μ·࢛߹ w ୴७ۛੜ#:࢛߹ w Ԟ೻ຏ࢛߹ 🍶Ұ೔໨ w ଜ༞ُޱҰঋ w ೆੜҰঋ w ൬৓伻Ұঋ w དྷ෱͘͞Β࢛߹ w ఱԺय़࢛߹ w य़բՖϥϕϧ࢛߹ w େഌϚονϣ࢛߹ w फݰ͠΅Γ࢛ͨͯ߹ w ۝ฏ࣍ੜ࢛߹ w Ԟ೻ຏ࢛߹ 🍶ೋ೔໨

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4QPOTPSFECZ&4. *OD /JHIU$SVJTF🛳⛱🍺 BU3VCZ,BJHJ 5IF.BSJFSB$PVOUFS POUIFTUqPPSPG #BZTJEF1MBDF)BLBUB'VUP5FSNJOBM 👉8FE"QSBU%FQBSUVSF 🌊 $PNJOHTPPO

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8FBSFIJSJOH ࠾༻ ೥Ҏ্ͷ3BJMTΞϓϦ։ൃͷ࣮੷ lίϛϡχςΟͱڞੜ͠ͳ͕Β੒௕͍ͨ͠z @koicまでどうぞ

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ΠϯτϩμΫγϣϯ Introduction

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3VCZָ͕͍͠ਓͨͪ͸ָ͍͠ People who enjoy Ruby as fun are fun

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.*/"48"/ Matz is Nice And So We Are Nice

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IUUQTUXJUUFSDPNLBLVUBOJTUBUVT

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l ޷͖ͳϝιου ͸ͳΜͰ͔͢ʁ 8IBUJTZPVSGBWPSJUFNFUIPE

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Ұ൪ਓؾͷϝιου Most popular method in the Rubyist Magazine

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IUUQTEPDTSVCZMBOHPSHKBNFUIPE&OVNFSBCMFJDPMMFDUIUNM

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IUUQTEPDTSVCZMBOHPSHKBNFUIPE&OVNFSBCMFJNBQIUNM NBQ

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l 3VCZJTUͨͪͷ੠ l l l ਓࠩ͠ࢦͱখࢦ͚ͩͰଧͭͱ͜Ζ͕͓͠ΌΕ DPMMFDUͰ͸ͳ͘NBQɻ୹͍͔Β JUFSBUPSͱͯ͠ FBDIΑΓNBQͷํָ͠ ͍ΑͶ ࢲͷ಄ͷத͸NBQͩΒ͚ Rubyists are nice

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ίϛϡχςΟ ਓʑͷू·Γ Community is a gathering of people

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ࠓ೔ͷ࿩ Today’s talk

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w ஍ҬίϛϡχςΟ w 044ίϛϡχςΟ w ΧϯϑΝϨϯε ओ୊ Theme

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ਓʑͷू·Γ͸༗ػతʹܨ͕͍ͬͯΔ 3FHJPOBM DPNNVOJUZ 044 DPNNVOJUZ $POGFSFODF Ruby communities are connected

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ࢲͨͪͷ ׆ಈੈք Our world

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ݱ࣮ੈք ωοτੈք Internet world Real world

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w ΧϯϑΝϨϯε w ஍Ҭ3VCZίϛϡχςΟ w 3VCZΛഎܠʹͨ͠ձࣾ΍ݸਓͰͷ Πϕϯτ΍ษڧձ w ͦ͜Ͱ஌Γ߹ͬͨ3VCZJTUͨͪͱ ͷΦϑձతͳԿ͔ ϦΞϧϫʔϧυReal world

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w (JU)VC w 5XJUUFS w 4MBDL *EPCBUB w ೔ه #MPH 2JJUB FTB w ߋʹ৮ഔͱͳΔ৘ใιʔε͸ແਚଂ ΠϯλʔωοπϫʔϧυInternet world

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w ޷͖ͳ͜ͱΛ࿩ͤΔͷ͸ͨͷ͍͠ w 3VCZΛ࢖ͬͨԶͬͯ͹εήʔײ w ޷͖ͳϝιου͔Β5SBDF1PJOU ·Ͱ w 3BJMTΛ͸͡Ίແݶͷ(FNͨͪ ಉ޷ͷ࢜ͱ৮ഔͷத৺ Ruby is a nice catalyst

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ࣗΒͷٕज़ʹؔ৺Λ࣋ͭ͜ͱ ͋ͳͨͷ࢓ࣄʹ͍ͭͯߟ͑Δ͜ͱʂ ܅͸ֶͿ͜ͱ͕৺͔Β޷͖ͩ ܅͸ιϑτ΢ΣΞͷ͜ͱΛେ੾ʹࢥ͍ͬͯΔ ΞδϟΠϧαϜϥΠ "HJMF 4BNVSBJ +POBUIBO3BTNVTTPO ୡਓϓϩάϥϚʔ 5IF1SBHNBUJD1SPHSBNN %BWJE5IPNBT "OESFX)VOU ࠜݯͷӔ Stairway to the pragmatic programmer

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஍ҬίϛϡχςΟ Ruby’s regional communities

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$IBQ l91ͱί ϛϡχςΟz IUUQXXXBNB[PODPKQEQ XP and Community

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l lF9USFNF1SPHSBNNJOHz,FOU#FDL ҰਓͰ͸Ͱ͖ͳ͍ ͜ͱ΋ڞಉମͱ͠ ͯͳΒ੒͠਱͛Β ΕΔͷͩɻ

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w ࢖͍ͬͯΔϥΠϒϥϦͷύονͷॻ ͖ํɺ࢖͍ํͷ૬ஊΛ͍ͨ͠ w τϐοΫͱͯ͠औΓѻ͍ͬͯΔٕज़ ͷಈ޲Λ஌Γ͍ͨ w ଞࣾɺଞαʔϏεͰͷ։ൃӡ༻ࣄྫ ΛΩϟονΞοϓ͍ͨ͠ ࡾਓدΕ͹จघͷ஌ܙ Wisdom of three people

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ೖΓํͷ ଟ༷ੑ Diversity to join the community

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w "TBLVTBSC w 4IJCVZBSC w (JO[BSC w 0NPUFTBOEPSC w 5PLZVSC w OJOJSC w :PLPIBNBSC 3FHJPOBMDPNNVOJUJFTJO5PLZP &UD FUD

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w ίʔυΛॻ͘ਓ͕ͨͪू·Δ w ϓϨθϯςʔγϣϯ w ಡॻձ w ϑϦʔελΠϧ w ೑Λম͍ͨΓುΛͭͭ͘ ͍͔ͭ͘ͷ஍ҬSCͷελΠϧ Community various

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৺ʹཹΊ͓͍͍ͯͯͩ͘͞ ͜Ε͸ࠓ·Ͱ΋ ݴΘΕ͖ͯͨ ͣͬͱ ͜ͱͰ͢ɻ First of all

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ࢠᐌ͘ɺ ʮ໊લॏ ཁʯ Naming is important

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ݪଇ̏ɿ໊લΛ֮͑Δ Remember people's names

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w ٯઆతʹͲͷΑ͏ʹ໊લΛ֮͑ͯ΋Β͏͔ w -5ͷ͋ΔൃදελΠϧͷίϛϡχςΟͰ ͋Ε͹ൃදऀʹͳΔ w Կʹؔ৺Λ࣋ͬͯ׆ಈ͍ͯ͠Δਓ͔Λࣗݾ ঺հͰ͖Δ w ࣗ෼͔Β੠Λֻ͚Δͷ͕ෆಘखͳਓʹ͓ ͢͢Ί ΦϨΦϨ ݪଇ̏ɿ໊લΛ֮͑Δ

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w Ұ೔࣌ؒ ि࣌ؒ ಇ͚͹෼ ࿩͢ωλͱͳΔ੒௕ͷࠩ෼͸͋Δ w ࣗ෼͕஌Βͳ͍͜ͱ͸ଞਓ΋஌Βͳ ͍Մೳੑ͕͋Δ w Կ͔ΛΞ΢τϓοτ͢Δͷ͸εΩϧ ͳͷͰ਎ʹ෇͚Δ͜ͱ͕Ͱ͖Δश׳ ϓϨθϯ Ξ΢τϓοτ ͷεεϝ Encouragement for presentation

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w ࢓ࣄͰ044Λ࢖͏ػձ͸ଟ͍ w ࣗ෼͕౿Μͩόά͸஍ܨ͕Γͷଞਓ ʹͱͬͯ΋όάͰ͋ΔՄೳੑ͕͋Δ w ࣗྗͰͳ͓ͤͳͯ͘΋ΠγϡʔΛ։ ͍ͯϨϙʔτ͢Δͱ໰୊௨஌ʹͳΔ w ஍ҬίϛϡχςΟͰ௚઀ฉ͘ػձ΋ 044 Ξ΢τϓοτ ͷεεϝ Encouragement for OSS

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w ୭͕Կͷ௚͠ํΛ஌͍ͬͯΔ͔ w ৽͍͠ػೳΛఏҊ͢Δલʹͦͷ(FN ͷར༻༻్ͱͯ͠ଥ౰͔Ͳ͏͔ w ύονΛͱ͓ͨ͢ΊͷΞυόΠε w 1VMM3FRVFTUͷϨϏϡʔ͕ࢭ·ͬ ͍ͯΔཧ༝͸ (FNͷ։ൃऀ ୭ Λ֮͑Δ Remember gem author's names

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ωοτੈք ݱ࣮ੈք γϣʔτΧοτͯ͠ ձ͍ʹߦ͘ Real world Internet world Go to meet

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SVCPDPQIRSVCPDPQ A/BNJOH'JMF/BNFABMMPXTAA

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l ιϑτ΢ΣΞ͸ਓ͕ ਓͷͨΊʹ࡞͍ͬͯΔ ג Ӭ࿨γεςϜϚωδϝϯτ$&0 ฏು݈ࣇ Software is made for people by people

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044ίϛϡχςΟ Ruby’s OSS communities

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044ίϛϡχςΟͱͷڞੜΛࢧԉ

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ۭલͷٕज़ ސ໰ϒʔϜ

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w 3BJMT$POGʹຖ೥ࢀՃ͍ͯ͠Δদ ా͞Μ BNBUTVEB Λܴ͑Δձ w 3BJMT͔ΒίʔυΛಡΉ w ຖ݄ͻͱΓίΞίϛολʔ঺հΛ͠ ͯ΋Β͍l3BJMTzͱ͍͏ϓϩμΫ τͰ͸ͳ͘ίϛϡχςΟ໘Λ܆ಃ 3BJMT044ύονձͷ։࢝࣌ Tell amatsuda about the Rails community

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IUUQTSVCZPOSBJMTPSH

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l ೥ؒͰ ਓҎ্͕ ؔΘ͍ͬͯΔϓϩδΣΫτ !LBNJQP The Rails project involving more than 5,200 people in 15 years

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w ࣮ϓϩδΣΫτͰࠔ͍ͬͯΔ໰୊͔ Βೖ͍ͬͯ͘ w 3BJMTϦϙδτϦͷ΢Σʔϒʹ৐Δ w 3BJMTࣗମͷґଘϓϩδΣΫτΛݟ ͯΈΔ ͲͷΑ͏ʹೖ͍͔ͬͯ͘ʁ How to join the Rails/OSS community

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w CVOEMFVQEBUFSBJMTͰ໰୊͕ ൃੜ͢Δͱ͖͕͋Δ w ͳ͔ͥ8)&3&৚݅Ͱͷൺֱʹλ ΠϜελϯϓΛ࢖ͬͨ࣌ʹ࣌ؒͣ Β͞ͳ͍ͱ݁Ռ͕ฦͬͯ͜ͳ͘ͳΔ -POH-JWF3BJMTΞϓϦέʔγϣϯ Upgrade Rails application with Oracle

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w ౰࣌ɺZBIPOEB͞Μ͸/:ࡏॅͰ ௚઀ͷ໘ࣝ͸ͳ͔ͬͨ w %))΍দా͞ΜͰͳ͍3BJMTʹؔ Θ͍ͬͯΔ։ൃऀͱͷ࠷ॳͷେ͖ͳ ίϯλΫτ w ͜ͷΠγϡʔ͸͠͹Β͘ղܾ͠ͳ͍ 5IF(BUFPG044

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w ࣌ࠩ 65$ ͣΕ͍ͯΔ໰୊ͱ Θ͔ͬͯ͸͍ͨͷͰ"3ͱ0SBDMF BEBQUFSΛಡΜͰɺͱΓ͋͑ͣϞ ϯΩʔύονͰCVOEMFVQEBUF w ͤΊͯϏδωεཁ͔݅Β֎ͨ͠Ϟϯ Ωʔύον(FNʹ͢Δ ͓னͷ࢓ࣄ͸଴ͬͯ͘Εͳ͍ Sometimes use monkey patch because business speed is fast

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w 3VCZ,BJHJͰɺ3VCZί ϛολʔͷۚࢠ͞ΜʹZBIPOEB͞ ΜΛ঺հͯ͠΋Β͏ w 3BJMTϦϙδτϦ΁ͷ13ͷ։͖ํ Λڭ͑ͯ΋ΒͬͨΓɺձظதʹҰॹ ʹσόοάΛͨ͠Γ͢Δ ஍ٿͷཪ͔Β΍ͬͯ͘Δ An Oracle adapter committer came to Japan from NY

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l ͳΜͰϞϯΩʔύονΛॻ ͘ྗ͕͋ΔͷʹVQTUSFBN ʹύονΛॻ͔ͳ͍ͷʁ !ZBIPOEB Why don't you open a pull request upstream?

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w LPJDlͲ͏௚ͤ͹ਖ਼͍͠ͷ͔෼͔Β ͳ͍ΜͰ͢z w ZBIPOEBlࢲͩͬͯͲ͏௚ͨ͠Β ਖ਼͍͔͠͸஌Βͳ͍Αz w LPJDlίϛολʔ͔ͩΒ།ҰͷղΛ ஌ͬͯΔঢ়ଶͱݶΒͳ͍ʜʜʜ 💭z །Ұͷਖ਼ղ͕ͳ͍ݱ࣮໰୊ There is more than one way to solve problems in the real world

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։؟ Get the hang of OSS

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w $*ͷεϩʔςετʹରͯ͠lSBJMT ECTDIFNBMPBEzΛ͔ͨͬͨ͠ ͕03"ͰΤϥʔʹͳΔ w ΞϓϦͷϞϯΩʔύονੜ·Ε w ࣗ෼ͷதͷه೦ൾͱͳΔlֻ͚࣠z ϞϯΩʔύον͔Βͷ୤٫ Transfer code from monkey patch to upstream

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0SBDMF DBOOPUDPOOFDUJOTFSUT XJUIAA

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"TUSVDUVSFTRMVTFS $BMMUIF EFWFMPQFSJOWPMWFE

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"TUSVDUVSFTRMVTFS

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w 1VMM3FRVFTUͰߦ͏΍ΓͱΓͰͷ ӳจ΁ͷl͓͚͡z͕ݮͬͨ w ύονͷ౤͛ํͷίπ͕Θ͔ͬͨ w %FTDSJQUJPO ίϛοτϝοηʔ δ ʹ͸৘ใΛ٧Ί͓ͯ͘ w Ͱ͖Δ͚ͩޙग़͠ʹͳΒͳ͍Α͏ʹ ࣗ෼ͷதͷλʔχϯάϙΠϯτ Turning point

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͋Δ೔ಥવ One day I had a lot of PR open

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౰࣌ͷ͓ؾ࣋ͪ Policy to go with Oracle enhanced adapter

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w ςετ͕௨͍ͬͯͳ͍(FNΛ࣮ۀ຿ Ͱ࢖͍ͬͯͨͱ͍͏౰ॳͷڻ͖ w ςετΛ௨͢ύονΛ౤͛ͯͨ౰࣌ ͸0SBDMFͷਓͱࢥΘΕ͍ͯͨͱࢥ͏ w ίϛολʔਪન͸3BJMTͰ׆ಈ͠΍͢ ͘͢ΔϥϕϦϯά΋͋ΔͱޙͰฉ͘ 3BJMTͰ0SBDMFͷςετ͕ͱ͓Βͳ͍ Oracle adapter does not pass in Rails framework testing

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w 0SBDMFΛ௨ͯ͡3BJMTͷͻͱͨͪ ͱ΍ΓͱΓΛ͢Δ w 3BJMTΞϓϦˠ0SBDMFˠ"3 w ౰࣌໘ࣝͷͳ͔ͬͨLBNJQP͞Μ΍ দా͞Μʹฉ͍ͨ͜ͱͷ͋Δ3BJMT ίϛολʔʹϨϏϡʔͯ͠΋Β͏ ଞਓͱҧ͏ͳΒҧ͏ͳΓʹ΍ͬͯΈͨ If you change, the whole world changes around you

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w ϨϏϡΞʔ͕ͲΜͳਓ͔ؾʹͳΔ w ͲΜͳύονΛग़͍ͯͨ͠ΓɺͲ͜ ͷࠃʹॅΜͰ͍ͨΓɺͲ͜ͷॴଐͳ ͷ͔ #BTFDBNQ 4IPQJGZ w ϨϏϡʔͰ͓ੈ࿩ʹͳͬͨ͋ͱ໊લ ΍ΞΠίϯΛݟΔͱ਌ۙײ͕༙͘ ϨϏϡʔ͞Ε͍ͯΔͱ Interested in reviewers

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w 3BJMTDPOUSJCVUPSTͷϥϯΧʔ Λݟ͍ͯ͘ w ͳΜͱͳ͘೔ຊͷਓΛ্Ґ͔ΒோΊ ͨΓ஌Γ߹͍͕աڈͲΜͳύονΛ ૹ͍ͬͯͨͷ͔ΛݟͨΓͯ͠ΈΔ w ͋Εʁ೔ຊͷਓଟ͘ͳ͍ʁ ަྲྀͷ͋ͬͨਓͷઌ͕ؾʹͳΔ Interested in people in the community

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IUUQTUXJUUFSDPNZBIPOEBTUBUVT

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l ೔ຊͷ3BJMT͸࢒೦ɻ೔ຊͰ 3BJMT͕࢖ΘΕͯͳ͍ͱ͍͏͜ ͱ͸ͳ͍ͱࢥ͏͕ɺͦΕʹͯ͠ ͸։ൃऀ͕গͳ͍ɻࢲ͕ݟͨͱ ͜ΖਓதͰ೔ຊਓΒ͖͠ ਓ͸਺ਓɻ IUUQTXXXBUNBSLJUDPKQOFXTSBJMTIUNM There are few Japanese contributors of Rails in 2009

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w ۙॴʹ͍Δਓͷ(FNΛ࢖͑ͷ๏ଇ w ࠔͬͨͱ͖։ൃऀʹ஍Ҭίϛϡχ ςΟͳͲͰ௚઀࿩ͤΔ͔΋ w ໰୊ΛΑΓ؅ཧ͠΍͘͢ͳΔ w ͲΜͳਓ͕࡞ͬͨ(FN͔෼͔Δ 3BJMTपลͷਓ͕पΓʹ૿͑Δޮೳ Love your neighbour Gems

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044ίϛϡχςΟͱͷڞੜΛࢧԉ

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w ҰՈݴΛ࣋ͭॏཁ w ˓˓˓ʹৄ͍͠ਓ w ίϛϡχςΟʹ͓͚Δ૬ख͔Βظ଴ ͞Ε͍ͯΔࣗ෼ͷ໾ׂ͕໌֬ʹͳΔ w ࿩͕͸΍͘ͳΔ 044ίϛϡχςΟͰͷੜଘઓུ Trust in the OSS Community

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SBJMTSBJMT &OBCMFBVUPDPSSFDUGPSA-JOU&OE"MJHONFOUADPQ

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w ͱ͸͍͑޷͖Ͱ΍͍ͬͯΔ w ͢Ͱʹߩݙͱ͸ࢥ͍ͬͯͳ͍ w ͩͬͯ3VCZָ͍͠Ͱ͠ΐʁ 044ίϛϡχςΟͰͷੜଘઓུ Enjoy programming with Ruby/Rails

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ΧϯϑΝϨϯε Ruby’s conference

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w ࿩Λௌ͘ w ਓʹձ͏ 3VCZ,BJHJBOEPUIFSDPOG Rubyist meets Rubyist

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l ;ͩΜ͔ΒίʔυΛॻ͍ ͨ͜ͱΛΧϯϑΝϨϯε Ͱձ͏ਓͨͪͱ࿩͢ !ZBIPOEB Write the code ﬁrst

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l 91͸΋͏ࢲͷखΛ཭Εͯίϛϡχ ςΟͰࡦఆ͕ਤΒΕ͍ͯ·͢ɻͰ΋ɺ ৽͍͠ϓϥΫςΟεʮ༵ۚ೔͸Ϗʔϧ ΛҿΈͳ͕Βʯ͸௥Ճ͍ͨ͠Ͱ͢Ͷ ,FOU#FDL Thank God It's Friday IUUQTHJIZPKQNBHB[JOFVNMQSFTTBSDIJWFWPM

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w ίʔυʹؔ͢Δڞ௨ͷ࿩୊ w ಉ͡佂ͷ൧Λ৯͏తͳɺಉ͡Ϧϙδ τϦͷίʔυΛॻ͍͍ͯΔϓϩάϥ Ϛʔ͕͍ͨΓ͢Δ w ;ͭ͏ʹੜ׆͍ͯͨ͠Βઈରʹձ͏ ͜ͱͷͳ͔ͬͨਓͨͪͱԑ͕Ͱ͖Δ Πϯλʔωοτͷ޲͜͏ଆͱձ͏ Meet with Rubyists who are committed to the OSS repository

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3VCZָ͕͍͠ਓͨͪ͸ָ͍͠ People who enjoy Ruby as fun are fun

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.*/"48"/ Matz is Nice And So We Are Nice

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ਓʑͷू·Γ͸༗ػతʹܨ͕͍ͬͯͯ ೖΓํ͸ͦΕͧΕ 3FHJPOBM DPNNVOJUZ 044 DPNNVOJUZ $POGFSFODF Ruby communities are connected

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w ΦʔϓϯͳίʔυΛॻ͘ w ͓னʹಘͨ஌ݟΛΞ΢τϓοτ͢Δ w ਓΛ֮͑Δਓʹ֮͑ͯ΋Β͏ w lιϑτ΢ΣΞ͸ਓ͕ਓͷͨΊʹ ࡞͍ͬͯΔzCZฏು݈ࣇ ίϛϡχςΟΛഒָ͠Ή Enjoy more community

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w ϞώΧϯҰঋ w ఱ໌Ұ೥ख़੒Ұঋ w ௕௝༤ொੜҰঋ w ձ௡່͘͞Β࢛߹ w ࢒૲26&&/࢛߹ w ాञ͘͞Βϥϕϧ࢛߹ w ෱ॕ७େ௚἞Έ࢛߹ w Ԟೳొͦͷ·Μ·࢛߹ w ୴७ۛੜ#:࢛߹ 🍶Ұ೔໨ w ଜ༞ُޱҰঋ w ೆੜҰঋ w ൬৓伻Ұঋ w དྷ෱͘͞Β࢛߹ w ఱԺय़࢛߹ w य़բՖϥϕϧ࢛߹ w େഌϚονϣ࢛߹ w फݰ͠΅Γ࢛ͨͯ߹ w ۝ฏ࣍ੜ࢛߹ 🍶ೋ೔໨

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l ίϛϡχςΟͱ͸୭͔ɻ΋ͪΖ Μɺ͋ͳͨͷ͜ͱͩɻ͋ͳ͕ͨ ίϛϡχςΟͰ͋ΓɺͦΕҎ֎ ʹίϛϡχςΟ͸͍ͳ͍ɻ͋ͳ ͨͷΑ͏ͳਓʑͷू·ΓΛɺί ϛϡχςΟͱݺͿͷͩɻ IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PSF8PSEIUNM Community is yourself