<s>
ipkg	B-Application
,	O
or	O
the	O
Itsy	B-Application
Package	I-Application
Management	I-Application
System	I-Application
,	O
is	O
a	O
discontinued	O
lightweight	O
package	B-Application
management	I-Application
system	I-Application
designed	O
for	O
embedded	O
devices	O
.	O
</s>
<s>
It	O
resembles	O
Debian	O
's	O
dpkg	B-Language
.	O
</s>
<s>
It	O
was	O
used	O
in	O
the	O
Unslung	B-Operating_System
operating	O
system	O
for	O
the	O
Linksys	B-Application
NSLU2	I-Application
(	O
Optware	O
)	O
,	O
in	O
OpenWrt	B-Application
,	O
Openmoko	B-Application
,	O
webOS	B-Operating_System
,	O
Gumstix	B-Application
,	O
the	O
iPAQ	B-Application
,	O
QNAP	B-Operating_System
NAS	B-Application
appliances	O
and	O
elsewhere	O
;	O
as	O
of	O
early	O
2017	O
it	O
can	O
still	O
be	O
used	O
for	O
the	O
Synology	B-Operating_System
NAS	B-Application
appliances	O
and	O
in	O
the	O
LuneOS	B-Application
operating	O
system	O
(	O
although	O
opkg	B-Application
is	O
an	O
increasingly	O
common	O
replacement	O
)	O
.	O
</s>
<s>
As	O
usual	O
for	O
package	B-Application
management	I-Application
systems	I-Application
,	O
ipkg	B-Application
's	O
command-line	B-Device
utility	I-Device
allows	O
installation	O
of	O
new	O
packages	O
,	O
upgrading	O
or	O
removal	O
of	O
existing	O
packages	O
,	O
querying	O
package	B-Application
repositories	I-Application
for	O
available	O
packages	O
,	O
and	O
listing	O
already	O
installed	O
packages	O
.	O
</s>
<s>
Many	O
projects	O
which	O
formerly	O
used	O
ipkg	B-Application
have	O
adopted	O
the	O
ipkg	B-Application
fork	O
opkg	B-Application
as	O
the	O
replacement	O
.	O
</s>
