<s>
Fira	B-Operating_System
OS	I-Operating_System
is	O
a	O
Linux-based	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
and	O
software	B-Device
platform	I-Device
developed	O
by	O
Fira	O
,	O
a	O
subsidiary	O
of	O
Indonesian	O
electronic	O
giant	O
Polytron	O
(	O
member	O
of	O
Djarum	O
Group	O
)	O
.	O
</s>
<s>
Introduced	O
on	O
January	O
28	O
,	O
2016	O
,	O
it	O
was	O
forked	B-Application
from	O
Android	B-Application
and	O
installed	O
on	O
newer	O
Polytron	O
smartphones	B-Application
since	O
2016	O
.	O
</s>
<s>
Fira	B-Operating_System
OS	I-Operating_System
is	O
based	O
on	O
the	O
Android	B-Application
Open	B-Application
Source	I-Application
Project	O
(	O
AOSP	O
)	O
and	O
the	O
Linux	B-Operating_System
kernel	I-Operating_System
.	O
</s>
<s>
It	O
was	O
built	O
to	O
comply	O
with	O
an	O
Indonesian	O
regulation	O
requiring	O
40%	O
minimum	O
local	O
content	O
on	O
all	O
4G	O
LTE	O
smartphones	B-Application
sold	O
in	O
Indonesia	O
starting	O
in	O
2017	O
.	O
</s>
<s>
Fira	B-Operating_System
OS	I-Operating_System
features	O
applications	O
that	O
are	O
not	O
usually	O
available	O
in	O
other	O
AOSP-based	O
operating	O
systems	O
,	O
such	O
as	O
FIRA	O
Check	O
Pulsa	O
,	O
FIRA	O
Store	O
,	O
FIRA	O
Pay	O
,	O
FIRA	O
Directory	O
,	O
and	O
others	O
.	O
</s>
