InnerSource Summit 2025
as the organisers put it
Thursday, 13th November 2025 to celebrate 10 years of InnerSource Commons — with events happening across Yokohama 🇯🇵, Berlin 🇩🇪, New York 🇺🇸, and online 🌍!
| title | author | length |
|---|---|---|
| Welcome to InnerSource Summit 2025 | Yuki Hattori | 12m |
10th anniversary of the InnerSource Commons anchors a 24-hour summit spanning Yokohama, Berlin, and New York, claiming growth to over 3,000 individuals from… | ||
| Navigating the AI Code Explosion | Yuki Hattori | 10m |
Five organizational failures and practical fixes that matter for AI collaboration: missing context crisis where decision history is trapped in private Slack… | ||
| Shaping What's Next: The Transformative Power of Engineers and Organization | Katsura Ito | 37m |
Describes concrete organizational moves: removing tenure gates, switching national exams online, rolling out Office 365 E5 and Wi‑Fi, and piloting a Copilot… | ||
| Transformation into an Innovative Company | Yusuke Shijiki | 12m |
Mitsubishi Electric positions Serendie platform as a cross-domain hub combining on-site data from home appliances to satellites with cloud and generative AI to… | ||
| Driving InnerSource Way in the Enterprise | Yoshitake Kobayashi | 29m |
Opened an internal Linux distribution to all departments (used across ~60 product lines), which stops silent forks, brings bug reports back, and enables direct… | ||
| Understand Why Open Source Process Management Matters To InnerSource | Shane Martin Coughlan | 20m |
Open source process management provides concrete artifacts and practices for InnerSource: OpenChain ISO/IEC 5230 and ISO/IEC 18974 define… | ||
| InnerSource Culture and Value Closed-Loop Practice | Chen Wei | 26m |
Huawei documents a failed 2014 pilot and a 2020 relaunch that grows into 3,000+ projects with 35,000+ contributors and about 2,050 million lines of code… | ||
| AI for InnerSource & InnerSource For AI | Jerry Tan | 18m |
Claims that AI both speeds InnerSource contribution and that InnerSource is the right home for AI assets with concrete practices and results: Baidu’s AI coding… | ||
| Beyond Metrics: Using Behavioral Design to Drive Quality in Software Projects | Mishari Muqbil | 21m |
Argues that metrics often backfire by eroding intrinsic motivation and getting gamed, and shows concrete alternatives: a prank-based rule that raises locking… | ||
| Implementing InnerSource as Culture for Sustainable Productivity & Innovation | Nitish Tyagi | 21m |
Gartner places inner source in the trough of disillusionment and surveys show only 33% of developers are satisfied with inner source support versus 75%… | ||
| InnerSource Community Journey Across Diverse Domains | Shingo Oidate, Kazuma Nogi | 27m |
Mitsubishi Electric reports an OSPO/ISPO launched in 2025 and a live Backstage portal that catalogs hundreds of scattered GitHub Enterprise repos via a custom… | ||
| Three points that promoted InnerSource activities | Ryo Ashikawa | 19m |
Nifty reports concrete results from three tactics: team-based platform repos and small shared tools drive cross-team PRs (example: a permission-definition file… | ||
| What's Your InnerSource Worth? | Younes Hairej | 18m |
A cloud-native maturity assessment tool maps contribution behaviors and tooling to industry benchmarks and converts them into dollars and timelines: example… | ||
| Origin Story of InnerSource Hero: Lessons from Practitioners on Core Values | Tomohiro Nakajima | 16m |
A music-based campaign at KDDI Agile Development Center distills InnerSource into two concrete practices: Publish what you create and Take action to gather… | ||
| Berlin Welcome address | Daniel Izquierdo Cortázar | 12m |
A brief state of the community: a 24-hour global summit marks the 10th anniversary while the InnerSource Commons now connects 3,000 individuals across 800+… | ||
| Keynote - From Code to Culture: Scaling Collaboration with InnerSource | Peter Giese | 25m |
SAP describes a companywide InnerSource collaboration setup that moves standards from docs to living projects: the CPA collaboration model uses enterprise… | ||
| Building a Culture of Ethical Collaboration: InnerSource in Data Annotation | Magaret Ekerendu | 15m |
Describes a concrete InnerSource workflow: connect Label Studio or CVAT to a private GitHub repo so annotation files and guidelines version with every export… | ||
| InnerSource in Government | Gilles Gravier | 26m |
Three years of work in the Geneva state administration yield concrete moves: internal development runs on GitLab with GitLab→GitHub sync to publish external… | ||
| InnerSource Contribution Insights | Robert Hansel, Benjamin Ihrig | 15m |
Companies extract commit and repo metadata from Git/GitHub and join it to Azure AD and ERP records to map author → department → legal entity; Bosch notes… | ||
| State of InnerSource 2025 | Clare Dillon | 18m |
115 survey responses from a global, mostly experienced sample show top principles as collaboration, openness and transparency and top practices as contribution… | ||
| Does adopting inner source increase job satisfaction? | Klaas-Jan Stol | 16m |
A mixed‑method study links InnerSource participation to higher job satisfaction via social capital rather than a direct effect: quantitative analysis of 155… | ||
| A Frictionless Inner Source Journey | Wolfgang Gehring, Sim Daniel Kolamkanni | 19m |
Company audits the inner source pipeline, surveys engineers and logs emotional, cognitive and interactive friction, then maps those to measurable initiatives… | ||
| Scaling Internal Collaboration with Open Source Operating Models | Ayodeji Ogundare | 21m |
Argues that applying open source operating models and OSPO practices fixes duplicated work (example: similar integrations across 27 offices), slow reviews (one… | ||
| Applying InnerSource for DATEV's Shared Frontend Library | Inez Störzer, Maximilian Capraro | 23m |
A front-end library built with GitLab-backed InnerSource reaches 99 teams, 314 contributors and grows its maintainer pool from 3 → 12, using Apache-style… | ||
| Open communication for open development | Isabel Drost-Fromm | 18m |
Starts with a concrete onboarding path: spend one hour a week reading a project’s community channels, follow mailing lists and issue trackers, answer recurring… | ||
| InnerSourcing GenAI | Frédéric Sicot Mouret, Nataliia Kees | 22m |
Airbus builds a serverless cloud platform called Gener that lets business teams spin up templatized sandboxes and move experiments to production quickly… | ||
| Building InnerSource Foundations Through InnerSource Patterns | Roman Martin, Carlos Navarro, Ana Gamito | 17m |
AXA and Red Hat co-develop a year-long InnerSource pilot that applies specific patterns and tools: Trusted Committer, InnerSource Portal, Contribution… | ||
| Welcome address | Russ Rutledge | 22m |
A New York welcome that frames the 24-hour global summit (Yokohama → Berlin → New York), lists hosts and sponsors (IBM, Mitsubishi Electric, SAP, GitHub… | ||
| Humans In the Loop: Collaborating in the Age of AI | Olivia Buzek | 32m |
IBM restructures collaboration into InnerSource then open source, taking internal NLP assets and infrastructure public (models on Hugging Face under Apache… | ||
| An InnerSource Transformation Story | Aaron M Kippins, Michael Gildein, Allison Moshier | 22m |
IBM Z runs a continuous InnerSource program that adapts open collaboration to a 60-year mainframe stack, guaranteeing 99.99999% uptime while reducing… | ||
| Securing InnerSource | Lucas Gonze | 18m |
OpenSSF tools can be repurposed for inner source by threat modeling concrete risks: no external scrutiny, insider malicious actors, transitive trust through… | ||
| Can you measure InnerSource? | Zack Koppert | 23m |
Three concrete measurements let organizations quantify InnerSource: cross-team participation (map contributors to teams and compute the inner source ratio —… | ||
| Is the Future Forked? Navigating an Uncertain Era via InnerSource | Micaela D Eller | 12m |
InnerSource proves that applying open source practices inside firms scales: a decade-old experiment grows from a handful to 3,000 members, spawns reusable… | ||
| Reimagining InnerSource for the Agentic AI Era | Fei Wan | 20m |
Agentic AI systems claim to plan, act, verify and iterate end-to-end rather than just answer prompts, using models like ChatGPT 5.0 and toolchains that call… | ||
| Incentivizing InnerSource Adoption | Katie Schueths | 32m |
Presents an incentive formula (desired behavior × motivator value ÷ effort) and concrete levers: early access to co-pilot for pilot teams chosen by… | ||
| AI: InnerSource Usurper or Superpower? | Lizzie Salita | 13m |
Teams at Booz Allen connect AI to InnerSource rather than replace it: an internal MCP server for an AWS CDK constructs library (10,000+ lines, docs… | ||
| Building Bridges: Scaling InnerSource | Oscar Lobaton Salas | 29m |
Credicorp connects several GitHub Enterprise Cloud instances across more than 10 companies and over 8,000 developers to cut duplicated work and enable… | ||
| We are People not Robots: An IBM InnerSource Story | Micaela D Eller, Jenna Ritten | 26m |
IBM consolidates 30 fragmented NLP stacks into a reusable AI platform called Watson Core, builds an InnerSource Program Office (ISPO) in 2022, and shifts… | ||
| The Value of InnerSource Culture | Aaron M Kippins, Michael Gildein, Allison Moshier | 33m |
IBM Z adapts InnerSource to a high‑assurance mainframe with 60 years of tooling, converting hundreds of legacy scripts into a searchable InnerSource portal and… | ||
| New Open Source Tools to Enable InnerSource | Christian DeFeo, Amber Lindsey-Rigg | 18m |
Shell describes two open source tools: an AI semantic search (Project Fleming) that indexes GitHub, Stack Overflow and SharePoint, runs on CPU with small… | ||
| Effective InnerSource Strategies for Resource-Constrained Teams | Jeff Bailey | 16m |
Resource-limited teams convert constraints into a functioning InnerSource system by making projects discoverable, standardizing onboarding, and using existing… | ||
| Kickstart with a Contribfest | Trin Baumgarten, Caroline T Jones | 20m |
Aerospace runs a hybrid internal Contribfest at an FFRDC to teach InnerSource by doing: funded spots for ~30 people, 31 participants from 21 departments… | ||
| Validating AI Outputs at Live Events | Rahul Agarwal | 22m |
Built an autonomous validation layer called LLM Judge that combines chain-of-thought prompting, theory-of-mind memory from historical editor edits, and a… | ||
| Closing address | Russ Rutledge | 09m |
A 10th anniversary wrap highlights a 24-hour multi-location summit across Yokohama, Berlin and New York, lists sponsors (IBM, GitLab, Red Hat, SAP, Mitsubishi… | ||
| The InnerSource Commons Roundtable | 49m | |
The community outlines concrete pathways: a global summit and yearly gatherings program (seven gatherings in 2024, six planned in 2025 including Tokyo, Berlin… | ||
| InnerSource Commons and Patterns | Russ Rutledge | 18m |
InnerSource Commons traces the term to 2000 and reboots worldwide in 2015, maintains a public InnerSource learning path, and runs the ISPO working group… | ||
| ISPO working group | Jeff Bailey | 11m |
The ISPO working group produces concrete artifacts: an expanded OSPO book chapter, the managing inner source projects content with an integrated GitHub comment… | ||
| How to organize a Gathering in your location | Yuki Hattori | 11m |
InnerSource runs a local Gathering program started from Dublin and officially launched in Tokyo, with 7 gatherings in 2024 (Tokyo, Berlin, Vienna, Dublin… | ||
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