Habr
β
How to become an author
My feed
All streams
Development
Admin
Design
Management
Marketing
PopSci
Search
Write a publication
Settings
Login
Pull to refresh
0
0
krupchanskiy
@krupchanskiy
User
Follow
Send message
Profile
Publications
Comments
27
Bookmarks
1
More
Dropdown
Followers
4
Following
4
Belongs to hubs
Project management
Self Promo
Information
Rating
Does not participate
Location
Россия
Date of birth
December 7 1977
Registered
January 31 2008