Habr
β
How to become an author
My feed
All streams
Development
Administrating
Design
Management
Marketing
PopSci
Search
Write a publication
Settings
Login
Pull to refresh
-20
Сергей Сергеев
@Sersoftin
read-only
User
Send message
Profile
Comments
42
Bookmarks
Badges
Unhabred
Invited
December 25 2017
by invitation from
@habrahabr
Information
Rating
Does not participate
Date of birth
April 13 1994
Registered
January 9 2015
Activity
May 20 at 18:48