tricks: - Have 2 clones of the repo side by side - Implement the a feature the "safe" way in one of them without touching too much code - Simultaneously implement the same feature more daringly, refactoring aggressively in a fit of rage •Google༁ ࢲͷཔΓʹͳΔιϑτΣΞ։ൃͷൿ݃ͷ 1 ͭ: - Ϩϙͷ 2 ͭͷΫϩʔϯΛฒͯஔ͢Δ - ͋·Γʹଟ͘ͷίʔυʹ৮ΕΔ͜ͱͳ͘ɺͦͷ͏ͪͷ 1 ͭͰػೳΛʮ҆શ ͳʯํ๏Ͱ࣮͠·͢ - ಉ͡ػೳΛΑΓେʹಉ࣌ʹ࣮͠ɺౖΓڰͬͯੵۃతʹϦϑΝΫλϦϯά͢Δ कഁͱιϑτΣΞ։ൃͷษڧ๏ 9