Ingo WichmannApr 4

There is now a fork of #OnlyOffice
called Euro-Office.

A few times I’ve heard some people express doubts about whether OnlyOffice is truly #OpenSource. At first glance, the question seems easy to answer: OnlyOffice is released under the AGPLv3.

But the developers believe they’ve found a way to prevent forks:
https://www.onlyoffice.com/blog/2026/03/onlyoffice-flags-license-violations-in-euro-office-project-by-nextcloud-and-ionos

They write that the AGPLv3 allows for the addition of “additional conditions” to the license. However, Section 7 refers to “Additional permissions”:
https://www.gnu.org/licenses/agpl-3.0.html.en#license-text

“Conditions” is not the same as “permissions.”

If OnlyOffice were to prevail with its interpretation, then AGPLv3 would not be an open-source license.

ONLYOFFICE flags license violations in “Euro-Office” project

The “Euro-Office” initiative is an evident and material violation of ONLYOFFICE licensing terms and principles of international intellectual property law.

ONLYOFFICE Blog
Show threadpetrolApr 4

@ingo_wichmann Section 7 of AGPLv3:

> If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.

Show threadT_X

@petrol @ingo_wichmann lol, that makes OnlyOffice's "lawyer's opinion", who bases their opinion on section 7, kind of funny to read. As if that lawyer hadn't even read the license themself and were forming an opinion on incomplete hearsay.

Did they ask an LLM to create a lawyer's opinion?

Apr 4 at 10:31amWeb