open-source and me: tips for a career in software development

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Aman Gupta Karmani · github.com/tmm1 open-source and me tips for a career in software development

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• programming for 20+ years • full-stack polyglot dev + ops • 10 years in silicon valley building my career • founded multiple startups • early engineer at GitHub • consulting for AirBnb, Twitter, etc • thousands of open-source contributions • moved to sunny Santa Barbara in 2018 Aman Karmani · @tmm1 about me

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about me 2003 - high school

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tips for a career in software development master a scripting language pick any one you like and get really good at it

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tips for a career in software development invest in your development environment experiment with di ff erent code editors like vim, emacs, intellij, vscode to fi nd what makes you most productive

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tips for a career in software development learn web technologies html, css, javascript http request/response + headers

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about me 2006 - college

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about me 2008 - San Francisco

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2009 - conferences about me

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tips for a career in software development engage with your community attend conferences, talks and meetups about the languages and frameworks you’re using

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about me 2010 - rails performance consulting

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tips for a career in software development learn to use debugging tools when you’re stuck, fi nd a tool which will dig deeper    pro fi lers, tracers, inspectors, debuggers for example: chrome web inspector

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about me 2011

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about me 2012 - pro fi ling tools

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tips for a career in software development think about how and where your code will run writing code is only half the battle.. maintenance + operations resilient software saves you sleep

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about me 2013 - ruby-core team

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about me 2014 - RubyKaigi Tokyo ! Aman Gupta (@tmm1) VP Technical Infrastructure GitHub, Inc. Ruby 2.1 in Production How I upgraded github.com from 1.8.7-p72 to 2.1.2 http://bit.ly/ruby21-in-production

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2016 about me

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2017 about me

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2018 about me

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2021 about me

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what is open source?

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pick your battles why open source?   Operating System   Device Drivers Framework Libraries Proprietary Business Logic } } closed source trade secret speci fi c to your product/business open source shared infrastructure community adding features edge case bugs found and fi xed credit card  processing http  webserver tcp/ip  network stack memory management    process scheduling

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open-source is a super power control your own destiny • look behind the scenes, instead of getting stuck • every change documented for future devs (+ you) • who changed it and when • what lines changed where • why why why

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how does open source work? code  (version control)  discussion  (code review)

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case study open-source software for tax returns

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OpenTaxSolver 20 years old! • written in C • subversion source control • hosted on sourceforge • GPLv2, contribute patches via email • mailing list + facebook group for discussion

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since 1996! excel1040 • written in excel macros (!) • no source control  no license • can it be called open- source? • hosted on google sites • contribute bug reports via email

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• written in TypeScript and React.js • git for source control • AGPL3, hosted on GitHub • discord discussions • automation: CI, codecov, dependabot, code formatting newcomer UsTaxes.org

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let’s contribute!

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• with the project • README, contribution guidelines, coding style • recent discussions, upcoming releases and goals • with the code base • look at open and recently closed issues • read through open and merged pull requests • what libraries, languages and frameworks are used? • how to setup a development environment? familiarize yourself let’s contribute

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start small let’s contribute

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documentation and project planning not all contributions are code let’s contribute

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let’s contribute setup development environment

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let’s contribute setup development environment

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document for the future let’s contribute

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document for the future let’s contribute

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copy existing patterns and style let’s contribute

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code review and scope creeeeeeeep let’s contribute

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code review and scope creeeeeeeep let’s contribute

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code review and scope creeeeeeeep let’s contribute

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bug fi x: follow the open source let’s contribute

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bug fi x: follow the open source let’s contribute

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bug fi x: follow the open source let’s contribute

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bug fi x: follow the open source let’s contribute

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fi x bugs that a ff ect you let’s contribute

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tips for a career in software development participate in open-source! build your skills and your portfolio scratch your own itch