<s>
SwellRT	B-Protocol
was	O
a	O
free	B-License
and	I-License
open-source	I-License
backend-as-a-service	B-Application
and	O
API	O
focused	O
to	O
ease	O
development	O
of	O
apps	O
featuring	O
real-time	B-Application
collaboration	I-Application
.	O
</s>
<s>
SwellRT	B-Protocol
has	O
its	O
origins	O
in	O
the	O
work	O
done	O
within	O
the	O
GRASIA	O
research	O
team	O
at	O
the	O
Universidad	O
Complutense	O
de	O
Madrid	O
,	O
as	O
part	O
of	O
the	O
EU-funded	O
project	O
P2Pvalue	O
(	O
2013	O
–	O
2016	O
)	O
,	O
in	O
a	O
team	O
led	O
by	O
Samer	O
Hassan	O
.	O
</s>
<s>
In	O
2014	O
,	O
the	O
developer	O
Pablo	O
Ojanguren	O
took	O
the	O
lead	O
in	O
forking	O
Apache	B-Application
Wave	I-Application
,	O
dropping	O
several	O
components	O
,	O
re-engineering	O
it	O
,	O
and	O
building	O
a	O
"	O
Wave	O
API	O
"	O
to	O
build	O
applications	O
on	O
top	O
.	O
</s>
<s>
In	O
2015	O
,	O
such	O
Wave	O
API	O
became	O
a	O
standalone	O
product	O
named	O
SwellRT	B-Protocol
.	O
</s>
<s>
In	O
2016	O
,	O
several	O
discussions	O
took	O
place	O
within	O
the	O
Apache	B-Application
Wave	I-Application
community	O
,	O
aiming	O
to	O
tackle	O
the	O
stagnation	O
and	O
crisis	O
state	O
of	O
the	O
project	O
.	O
</s>
<s>
The	O
Apache	O
Software	O
Foundation	O
mentor	O
of	O
Apache	B-Application
Wave	I-Application
,	O
Upayavira	O
,	O
was	O
concerned	O
on	O
the	O
project	O
stagnation	O
,	O
but	O
framed	O
SwellRT	B-Protocol
as	O
Wave	O
's	O
potential	O
savior:Once	O
more	O
Wave	O
is	O
on	O
the	O
brink	O
of	O
retirement	O
.	O
</s>
<s>
However	O
,	O
this	O
time	O
,	O
an	O
offer	O
has	O
been	O
made	O
of	O
code	O
from	O
SwellRT	B-Protocol
,	O
which	O
is	O
a	O
fork	O
of	O
Wave	O
itself	O
,	O
and	O
a	O
concall	O
has	O
been	O
scheduled	O
for	O
interested	O
parties	O
to	O
discuss	O
whether	O
it	O
is	O
a	O
go-er	O
.	O
</s>
<s>
It	O
is	O
my	O
(	O
limited	O
)	O
understanding	O
that	O
many	O
of	O
the	O
complexity	O
issues	O
in	O
the	O
Wave	O
code	O
that	O
have	O
prevented	O
community	O
development	O
have	O
been	O
resolved	O
in	O
SwellRT	B-Protocol
.	O
</s>
<s>
Eventually	O
,	O
Wave	O
was	O
approved	O
to	O
continue	O
within	O
Apache	O
incubator	O
program	O
,	O
and	O
a	O
copy	O
of	O
SwellRT	B-Protocol
codebase	O
was	O
placed	O
in	O
the	O
Apache	B-Application
Wave	I-Application
repository	O
in	O
order	O
to	O
grant	O
the	O
Wave	O
community	O
access	O
to	O
it	O
.	O
</s>
<s>
In	O
this	O
regard	O
,	O
Intellectual	O
Property	O
of	O
SwellRT	B-Protocol
was	O
transferred	O
to	O
the	O
Apache	O
Foundation	O
in	O
2017	O
.	O
</s>
<s>
In	O
both	O
2016	O
and	O
2017	O
,	O
SwellRT	B-Protocol
participated	O
in	O
the	O
Google	O
Summer	O
of	O
Code	O
as	O
part	O
of	O
the	O
set	O
of	O
projects	O
from	O
the	O
Berkman	O
Klein	O
Center	O
for	O
Internet	O
and	O
Society	O
at	O
Harvard	O
University	O
.	O
</s>
<s>
In	O
2016	O
,	O
SwellRT	B-Protocol
replaced	O
its	O
XMPP-based	O
federation	O
protocol	O
(	O
inherited	O
from	O
Apache	B-Application
Wave	I-Application
)	O
for	O
the	O
Matrix.org	B-Protocol
federation	O
protocol	O
.	O
</s>
<s>
In	O
2017	O
,	O
end-to-end	O
encryption	O
was	O
implemented	O
,	O
following	O
an	O
innovative	O
approach	O
to	O
encrypt	O
communication	O
in	O
Operational	B-Operating_System
Transformation	I-Operating_System
collaborative	O
documents	O
.	O
</s>
<s>
SwellRT	B-Protocol
received	O
international	O
recognition	O
within	O
the	O
fields	O
of	O
decentralized	O
technologies	O
and	O
real-time	B-Application
collaboration	I-Application
.	O
</s>
<s>
It	O
was	O
also	O
selected	O
by	O
the	O
Redecentralize	O
advocacy	O
group	O
,	O
as	O
one	O
of	O
the	O
redecentralization	O
projects	O
whose	O
founders	O
were	O
interviewed	O
,	O
It	O
launched	O
an	O
international	O
contest	O
to	O
develop	O
apps	O
using	O
SwellRT	B-Protocol
,	O
which	O
was	O
awarded	O
to	O
free/open	O
source	O
developers	O
in	O
India	O
.	O
</s>
<s>
SwellRT	B-Protocol
was	O
one	O
of	O
the	O
first	O
adopters	O
of	O
the	O
Contributor	O
Covenant	O
code	O
of	O
conduct	O
.	O
</s>
<s>
SwellRT	B-Protocol
was	O
a	O
fork	O
from	O
Apache	B-Application
Wave	I-Application
,	O
inheriting	O
some	O
of	O
its	O
architecture	O
and	O
technology	O
stack	O
.	O
</s>
<s>
However	O
,	O
it	O
grew	O
beyond	O
the	O
limits	O
of	O
Wave	O
,	O
first	O
presenting	O
itself	O
as	O
a	O
web	B-Application
framework	I-Application
and	O
nowadays	O
growing	O
to	O
a	O
backend-as-a-service	B-Application
platform	O
.	O
</s>
<s>
It	O
is	O
fully	O
free/open	B-License
source	I-License
software	I-License
.	O
</s>
<s>
It	O
is	O
developed	O
in	O
Java	B-Language
.	O
</s>
<s>
GWT	B-Language
with	O
JSInterop	O
is	O
used	O
to	O
generate	O
JavaScript	B-Language
API	O
reusing	O
the	O
same	O
source	O
code	O
.	O
</s>
<s>
Android	O
client	O
is	O
also	O
built	O
from	O
the	O
same	O
Java	B-Language
sources	O
.	O
</s>
<s>
It	O
provides	O
an	O
extensible	O
and	O
pluggable	O
rich-text	O
editor	O
component	O
for	O
Web	O
(	O
only	O
)	O
supporting	O
custom	O
annotations	O
and	O
widgets	B-Application
.	O
</s>
<s>
Real-time	O
data	O
storage	O
is	O
based	O
on	O
Wave	O
's	O
Operational	B-Operating_System
Transformations	I-Operating_System
model	I-Operating_System
,	O
thus	O
it	O
is	O
eventually	O
consistent	O
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
maximize	O
interoperability	O
,	O
and	O
follows	O
a	O
federation	O
approach	O
similar	O
to	O
Apache	B-Application
Wave	I-Application
,	O
using	O
XMPP	B-Protocol
or	O
Matrix.org	B-Protocol
communication	O
protocol	O
.	O
</s>
<s>
SwellRT	B-Protocol
provides	O
a	O
programming	O
model	O
based	O
on	O
collaborative	O
objects	O
.	O
</s>
<s>
SwellRT	B-Protocol
facilitated	O
the	O
development	O
of	O
mobile/web	O
apps	O
,	O
and	O
thus	O
several	O
apps	O
have	O
been	O
built	O
using	O
this	O
technology	O
.	O
</s>
<s>
Apart	O
from	O
the	O
demos	O
provided	O
by	O
SwellRT	B-Protocol
,	O
third-parties	O
developed	O
other	O
demo	O
apps	O
such	O
as	O
a	O
Q&A	O
site	O
,	O
an	O
extension	O
to	O
extract	O
keywords	O
,	O
a	O
collaborative	O
scrollbar	O
,	O
a	O
political	O
participation	O
Android	O
app	O
,	O
a	O
Trello-SwellRT	O
connector	O
.	O
</s>
<s>
Besides	O
,	O
two	O
fully-fledged	O
apps	O
are	O
currently	O
using	O
SwellRT	B-Protocol
technology	O
:	O
</s>
