[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_9":-5,"_85":-5,"_86":87,"_88":89,"_90":91,"_92":93,"_94":95,"_96":97,"_98":12,"_99":100,"_101":102,"_103":104},"routes/_store+/_readers+/u.$username/route",{"_9":10,"_11":12},"user",{"_13":14,"_15":16,"_17":16,"_18":-5,"_19":-5,"_20":21,"_22":16,"_23":-5,"_24":-5,"_25":-5,"_26":-5,"_27":-5,"_28":-5,"_29":-5,"_30":31,"_32":33,"_34":12,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58,"_59":60,"_61":62,"_63":64,"_65":66,"_67":68,"_69":-5},"isPreview",false,"name","Lauri Hahne","githubname","lhahne","username","instagramname","linkedinname","profileBlurbWithNofollow","

I am a software engineer living in Tampere, Finland.

","twittername","youtubeUrl","facebookUrl","youtubeName","mastodonName","tiktokName","blueskyName","redditName","profileLaunchVideos",[],"publicProfile",true,"mediaSheetAvailable","reviewDisplayPreference","none","profileReviews",[],"avatarX512",{"_82":84},"avatarX1024",{"_82":84},"publishedBooks",[70],"unpublishedBooks",[],"retiredBooks",[],"publishedCourses",[],"unpublishedCourses",[],"retiredCourses",[],"publishedBundles",[],"publishedTranslations",[],"unpublishedBundles",[],"retiredBundles",[],"publishedTracks",[],"unpublishedTracks",[],"retiredTracks",[],"latestPodcastEpisode",{"_71":72,"_73":74,"_75":76,"_77":78,"_79":14,"_80":81},"id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvMjE3MDc","slug","stumblingjapanese","title","Stumbling Japanese","publisherSlug","leanpub","authorString","coverHero2x",{"_82":83},"url","https://d2sofvawe08yqg.cloudfront.net/stumblingjapanese/s_hero2x?1620498158&1620498158","https://d39qdlcrvnra4b.cloudfront.net/avatars/225101/x512/2014-10-12_14.41.15_HDR.jpg?1445112229","shoppingCartId","shoppingCart",{"_71":117,"_118":119,"_120":33,"_121":122,"_123":124,"_125":126,"_127":33},"locale","en","readerTheme","light","constants",{"_115":116},"publishers",{"_111":112,"_113":114},"learnerOrganizations",[],"needsLocaleCookieSync","announcements",{"_105":106,"_107":-5},"sentryEnvironment","production","sentryRelease","45f39c2039faf2d7e14ad3ae1438b1a994315eeb","announcement_store",{"_108":12,"_109":110},"announcement_authors","flag","text","

Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

\n","companies",[],"universities",[],"paypalClientId","AX53Cwz8jR6rVVzzZiZNWWXl0dGagi-GZrjG-S3Ua14E5nrKMn7DxDQ730O4R8LusLPp49ALn6aRVaEy","no-cart","count",0,"free","updatedAt","","paymentGateway","STRIPE","cartItems",[],"loading"]

Lauri Hahne

About Lauri Hahne

Books by Lauri Hahne

Find your next book on Leanpub.