<s>
The	O
Collective	B-Application
Knowledge	I-Application
(	O
CK	O
)	O
project	O
is	O
an	O
open-source	B-License
framework	B-Architecture
and	O
repository	B-Application
to	O
enable	O
collaborative	O
,	O
reproducible	O
and	O
sustainable	O
research	O
and	O
development	O
of	O
complex	O
computational	O
systems	O
.	O
</s>
<s>
CK	O
has	O
an	O
integrated	O
cross-platform	O
package	B-Application
manager	I-Application
with	O
Python	B-Language
scripts	I-Language
,	O
JSON	B-General_Concept
API	B-General_Concept
and	O
JSON	B-General_Concept
meta-description	O
to	O
automatically	O
rebuild	O
software	O
environment	O
on	O
a	O
user	O
machine	O
required	O
to	O
run	O
a	O
given	O
research	O
workflow	O
.	O
</s>
<s>
Whenever	O
a	O
new	O
workflow	O
with	O
all	O
components	O
is	O
shared	O
via	O
GitHub	O
,	O
anyone	O
can	O
try	O
it	O
on	O
a	O
different	O
machine	O
,	O
with	O
different	O
environment	O
and	O
using	O
slightly	O
different	O
choices	O
(	O
compilers	B-Language
,	O
libraries	O
,	O
data	O
sets	O
)	O
.	O
</s>
