Letter Opener

The popularity rating of Letter Opener explained

Github Repository Rubygem
The highest rated repository is rails/rails with 25062 watchers and 9780 forks, resulting in a Github score of 100.00 The highest rated Rubygem is rake with 66212537 total downloads
These are the references for the score, marking the popularity of 100%
Now, the repository for Letter Opener over at ryanb/letter_opener has got 1780 watchers and 138 forks, resulting in a Github score of 3.34 Now, the gem letter_opener has got 1194377 total downloads
Therefore, the relative popularity percentage can be calculated for Letter Opener
3.34 watchers & forks * 100% = 3.34%
100.00 top score
1194377 total downloads * 100% = 1.80%
66212537 top score
The average of those two values results in the score:

2.57%

So, assuming everyone is using the most popular projects,
roughly one out of 33 Rubyists use Letter Opener
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