The document discusses various topics related to open source software including welcoming and helping users, releasing software early and often, treating open source software as a hobby rather than work, using micro libraries, benchmarking code performance, learning as you go, co-maintaining projects, reporting and fixing issues, being polite, discussing ideas for improvements, considering how software may be used, making open source more diverse and sustainable, and enjoying participating in open source projects.

2. First contact

3. gedit

5. gedit

6. gedit

8. The End

9. The End
needless work

10. The End
needless work
missing triaging

11. The End
needless work
missing triaging
no appreciation

12. The End
needless work
missing triaging
frustration
no appreciation

13. Stories in Open Source
Tobias Pfeiffer
@PragTob
pragtob.info

17. Shoes.app width: 300, height: 200 do
background lime..blue
stack do
para "Welcome to the world of Shoes!"
button "Click me" do
alert "Nice click!"
end
image "http:./shoesrb.com/img/shoes-icon.png",
margin_top: 20, margin_left: 10
end
end

20. Welcoming, friendly & helpful

21. OSS friends

22. Give people access

23. Release early, release often

24. You are not your OSS

25. class Dog
def bark
puts 'Woooof'
end
end
Dog.extend AfterDo
Dog.after :bark do puts 'I just heard a dog bark!' end
dog = Dog.new
dog.bark
# Output is:
# Woooof
# I just heard a dog bark!
after_do

27. micro libraries are great

28. you have no idea how it’s used

29. list = Enum.to_list(1..10_000)
map_fun = fn i .> [i, i * i] end
Benchee.run(
%{
"flat_map" .> fn .> Enum.flat_map(list, map_fun) end,
"map.flatten" .> fn .> list .> Enum.map(map_fun) .> List.flatten() end
},
time: 10,
memory_time: 2
)
benchee

31. learn as you go

32. just being better isn’t enough

33. co-maintainers

34. We made it!

35. SimpleCov

37. “legacy” OSS

38. joy of impact

39. you don’t owe people

40. nightmares of integration

41. First step into
OSS

42. Please report issues!

43. Be nice!

44. Be nice!
Minimize

45. Be nice!
Minimize
Reproduce

47. Discuss!

48. (Maybe) add a PR!

49. OSS vs Work

51. OSS
Be nice!

52. OSS
Be nice!
Your OSS, your time

53. OSS
Be nice!
Your OSS, your time
Adoption takes time

54. OSS
seemingly even less diverse

55. OSS
seemingly even less diverse
is this sustainable?

56. OSS
seemingly even less diverse
is this sustainable?
what about people using OSS for “evil”?

58. friends

59. friends

60. friends

61. friends
first talks

62. friends
first talks

63. friends
first talks

64. friends
first talks

65. friends
first talks
learning

66. friends
first talks
learning
all other projects

67. friends
first talks
learning
all other projects

68. @PragTob
Enjoy OSS