Speaker Guide

We are excited to welcome you as a speaker for Open Source Summit Europe 2025, held from 25-27, August, in Amsterdam, Netherlands.

Please click through the tabs on this page to access information.

• Speaker Registration Deadline: Monday, 23 June. You should have received registration information in your speaker notification email. Please email cfp@linuxfoundation.org if you need this information sent to you again.
• Additional AV Request Deadline: Monday, 28 July
• Slide Submission Deadline: Sunday, 24 August
• Event Dates: Monday, 25 August – Wednesday, 27 August

Your registration serves as confirmation that you will be speaking, and you will need to register by Monday, 23 June. Please see your notification email for the discount code. 

All speakers receive complimentary registration and any co-speakers or panelists can register using the same details provided to you.

If you require a visa letter, please register for the event and then complete the visa letter request here.

If you are applying for travel funding and have not submitted your request, please do so as soon as possible. The deadline for travel funding applications is 7 July. You can access the form here. 

*Please note: Talk acceptance does not guarantee travel funding.

This year’s event will take place at the RAI Amsterdam Convention Centre in Amsterdam, Netherlands.

Please visit our Venue & Travel page for room block information and hotels in the area. Please note, rooms will most likely sell out in advance of the room block close dates listed. We encourage you to book early to secure a room at the conference rate. 

The schedule will be announced on Thursday, 5 June, and will be posted on our website using sched.com.

Most breakout sessions are 40 minutes in duration; lightning talks are 10 minutes in duration; and tutorials are 90 minutes in duration. Please view the schedule for your exact session time. 

If you have a conflict with the timing of your talk or find that it conflicts with the content of another talk; or are having problems uploading your bio and photo, please contact cfp@linuxfoundation.org. If you would like to make updates to your speaker profile on sched.com (biography, headshot, titles), send updates directly to cfp@linuxfoundation.org, so they can be integrated with the virtual platform.

Please note the following technical requirements:

• All speakers must supply their own computers and adapters to use during their talk.
• Presentation slides should be formatted in 16:9. 
• The room will include a screen, a projector with an HDMI connection and (2) microphones (one wired podium microphone and one wireless clip-on; panels will receive one wireless Lavalier microphone and one handheld microphone to be shared with the panelists )
• If you require any additional AV, please email cfp@linuxfoundation.org with those needs by Monday, 28 July. The Linux Foundation will make every effort to accommodate additional AV needs; however, final approval for additional AV requests will be made on a case-by-case basis.

Captioning

• We’re excited to offer Wordly’s live translation and captioning service for your session. Present in your preferred language while attendees follow along in real time with captions or audio in 60+ languages – right from their own devices, with no downloads or logins required.  It’s a simple way to make your session more accessible and engaging for a global audience. Learn more here.

All speakers are required to submit their final presentation slides ahead of the event. In addition to providing a hard copy for accessibility purposes, we find that adding the presentations before the event helps to drive interest in attending the session.

To upload slides:

• Log into your speaker profile through Sched.com
• On the top of the page, click “Manage and Promote Your Session”
• Click “Add Presentation”
• Click in the “Select a File” box and add the PDF document (note: there is a 50MB size limit)
• Click “Upload” and your slides will automatically be saved

An optional slide template is available for download below.

• OSS Europe .ppt
• OSS Europe .odp

We understand that there may be circumstances beyond your control that prevent you from speaking in person; however based on attendee feedback, we have decided to not include virtual talks for this event. If your availability has changed and you are unable to participate, please email cfp@linuxfoundation.org as soon as possible so that we can remove your session from the agenda.

In collaboration with the National Center for Women in Technology (NCWIT), the Linux Foundation has created an online course designed to teach the viewer about inclusion and unconscious bias. We highly recommend all of our speakers watch the course to learn tips/tools to use when speaking to encourage inclusivity in presentations and messaging. 

As we finalize preparations for the conference, we want to ensure that your experience is as smooth and comfortable as possible. If you have any specific accessibility needs or requirements, please let us know so we can make the necessary accommodations for your session.

Please read, and abide, by our code of conduct. Our code of conduct is strictly enforced. We ask that speakers especially review this code of conduct and are careful to be inclusive in the words and images used during their presentations.

If you have any other platform, speaker, or schedule-related questions, please contact us at cfp@linuxfoundation.org.