Free + Open Source Goodness
Jamie Tanna (@jamietanna)
Anna Dodson (@anna_hax)
Who are we?
Jamie
- Software Quality Engineer @ Capital One
- University of Nottingham Computer Science Alumnus ‘16
- Hacksoc co-founder
- 4th time Hacktoberfest-er
Anna
- I did a masters in CS here (I did not do an undergrad in CS)
- Joined HackSoc, was one of the organisers of Inspire WiT 2016
- My first hackathon was HackNotts
- I am now a Software Engineer at Imosphere
- I love my job
- We use dot net… and a lot of open source tools too
So why is it important?
https://www.wired.com/story/john-deere-farmers-right-to-repair/
https://www.digitaltrends.com/computing/apple-locking-down-macs-from-repairs/
Open Source
Free Redistribution
- no restrictions on selling / giving away, as part of “aggregate software distribution”
- no royalty, other fees required
Source Code
- Must include source code
- Must allow distribution in source as well as compiled form
- Can’t deliberately obfuscate, provide intermediate forms
Derived Works
- allow modifications + derived works
- must allow distribution under same terms of original license
Integrity of The Author’s Source Code
- must allow distribution of software built from modified source code
- although it may require different name, version
No Discrimination Against Persons or Groups
No Discrimination Against Fields of Endeavor
- may not restrict i.e. military, genetic research
Distribution of License
- must apply to anyone the program is distributed to
License Must Not Be Specific to a Product
- must not depend on being part of a software distribution
License Must Not Restrict Other Software
- no restrictions on other software distributed with it
License Must Be Technology-Neutral
Free Software
“this is a matter of freedom, not price, so think of ‘free speech,’ not ‘free beer’”
Definitions via https://www.gnu.org/philosophy/free-sw.en.html
Freedom 0
The freedom to run the program as you wish, for any purpose (freedom 0).
Freedom 1
The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1). Access to the source code is a precondition for this.
Freedom 2
The freedom to redistribute copies so you can help others (freedom 2).
Freedom 3
The freedom to distribute copies of your modified versions to others (freedom 3). By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.
Licenses are hard
IANAL
I Am Not A Lawyer
Copyright vs Copyleft
Copyright: Only the author/creator has rights to copy, distribute, adapt the work
Copyleft: the public retains freedom to copy, distribute, adapt the work, provided it is under the same copyleft terms
Proprietary / All Rights Reserved
Source Available
Not technically a license!
BSD (2-Clause)
MIT
Apache-2.0
GPLv2
AGPL
What about content like art, music, etc?
Creative Commons comes in here
Where do I get me some Open Source?
GitHub.com
GitLab.com
BitBucket.com
Other Source-hosting platforms
Not necessarily Git-based
Resources
TLDR; Legal
Open Source Initiative
Open Source Guide
Free Software Foundation
Hacktoberfest
https://hacktoberfest.digitalocean.com/
https://webuiltthisforhacktoberfest.netlify.com/
Anna’s Hacktoberfests
2016
2017
Happy Hacktoberfest!
