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2025-12-05

COSCon 2025: the Linyaps invitation and the deepin community booth

The December 2025 Beijing invitation, a recovered companion venue map, the deepin booth number and a worksheet for preparing a useful technical conversation.

On this pageThe invitation’s themeA companion copy adds the venue contextPrepare one useful booth questionPresentation materials in the event archiveAfter the event: photographs and the talkThree published schedules, three time slotsReading the 28-page UOS AI presentationA practical example: review three file renames

Original publication: 2025-12-05. English edition and practical reading notes: Linglong, 18 October 2026. Chinese original.

The Linyaps invitation was published on 5 December 2025 for COSCon on 6–7 December 2025 at the Park Plaza Beijing Science Park hotel in Haidian, Beijing. This event has ended; the invitation and map are historical records.

The invitation’s theme

The article traced COSCon to an initiative by KAIYUANSHE in 2015, with the name adopted in 2016. For its tenth-year milestone, the 2025 theme was “Open Source, Open Intelligence”, focusing on AI and open-source collaboration. It described a main forum and 24 concurrent activities or thematic forums.

Linyaps was to appear with deepin in the open-source bazaar. The invitation described community check-in activities, open-source quizzes and opportunities to receive community merchandise. Its registration invitation and QR material belonged to that event, not an offer of current tickets or gifts.

A companion copy adds the venue context

The deepin invitation for the same event preserves a venue map and a forum program. The map’s exhibitor list identifies deepin at number 19. The program is dated 6 December and lists the UOS AI talk from 16:00 to 16:20. These are announced coordinates and times, not proof of attendance or a current visit plan.

The 6 December 2025 forum program in the companion invitation.
The 6 December 2025 forum program in the companion invitation. Source: deepin, December 2025.
The original venue map: deepin is exhibitor 19. This is not a current venue guide.
The original venue map: deepin is exhibitor 19. This is not a current venue guide. Source: deepin, December 2025.

Prepare one useful booth question

Use a project booth to resolve a concrete uncertainty. For a packaging project, bring the application ID, target distribution and the first failing step. Ask which maintained example or issue tracker matches that case, and record the answer’s date.

Project and task:
Application / version / target environment:
One reproducible question:
Demonstration requested:
Maintained source or issue URL:
What the demonstration actually showed:
Next step and owner:

A conversation or an exhibition map does not verify product compatibility. Test the specific task separately.

COSCon 2025 was announced for 6–7 December in Beijing; the companion map lists deepin booth 19 and the 6 December program lists a 16:00–16:20 UOS AI talk.
COSCon 2025 was announced for 6–7 December in Beijing; the companion map lists deepin booth 19 and the 6 December program lists a 16:00–16:20 UOS AI talk. Diagram: Linglong; based on the original publication linked below.

Presentation materials in the event archive

KAIYUANSHE’s COSCon 2025 slide repository lists Zheng Youge’s presentation, How UOS AI shapes a new intelligent operating-system experience. Read it alongside the dated program as a historical presentation source; it is not a current Linyaps application compatibility test.

After the event: photographs and the talk

Read the invitation alongside deepin’s report of 10 December 2025 and openKylin’s forum report of 8 December. The former records the community booth and Zheng Youge’s UOS AI presentation. The latter places the presentation in the Open-source Operating Systems and Supply Chain forum on 6 December. The photographs below belong to that historical event.

The COSCon 2025 group portrait beneath the conference title.
COSCon 2025 group portrait, reproduced in the forum report. Photo source: openKylin; original watermark retained.
Zheng Youge speaking at the COSCon 2025 operating-system forum.
Zheng Youge’s UOS AI presentation, photographed in the deepin retrospective. Photo source: deepin; original watermark retained.
Two views of visitors and displays at the deepin booth at COSCon 2025.
The original two-view booth photograph. Photo source: deepin; original watermark retained.

Three published schedules, three time slots

The preserved sources disagree on the UOS AI session. The event platform associates the talk with Zheng Youge in the operating-system forum. Read the time together with its source; these records do not establish the actual start time on the day.

UOS AI session on 6 December 2025, as listed by each source
SourceListed time
deepin invitation, 3 December 202516:00–16:20
openKylin program, 3 December 202517:30–18:00
Bagevent event record17:00–17:30

A Wayback capture of the Bagevent page from 13 December 2025 already lists 17:00–17:30 for this talk. This supports the date of that published schedule; it still does not verify the actual on-stage timing.

Two QR designs, one event record

The full-size 430×430 QR from the deepin invitation differs from the one in RTE Community’s 3 December announcement, but both decode to https://www.bagevent.com/event/8199016, the record of COSCon’25 organized by KAIYUANSHE. The event took place on 6–7 December 2025. The image is preserved for reading the historical announcement; it does not offer current tickets.

View the original event poster and historical registration image
Original COSCon’25 event poster: Open Source, Open Intelligence; 6–7 December 2025, Park Plaza Beijing Science Park.
Original 4800×2700 poster from the organizer’s event record. It retains the 2025 dates and Beijing venue. Open the image for full resolution.
The original registration QR from the 2025 companion invitation, pointing to Bagevent event 8199016.
Full-size source: deepin invitation. Another QR with the same destination: RTE Community. Original artwork retained. This is a past event.

What the other publication preserves

A 5 December 2025 BAAI republication retains the bazaar announcement and identifies its source as WeChat. Its deepin entry announces a community introduction, demonstrations and small interaction gifts. Those are the announced activities; the existing post-event photographs document the booth separately. The RTE publication describes its own booth as number 18, distinct from deepin’s number 19 on the companion map.

When using these records, keep four things separate: the announcement’s date, the event’s dates, a planned activity and evidence that it actually occurred. A working registration page or an old “registration open” label does not make the 2025 event current.

Compare the original forum program and its historical registration panel
The 6 December 2025 forum program; Zheng Youge’s UOS AI session is listed at 17:30–18:00.
Full program from the 3 December 2025 announcement. Its registration QR belongs to the past event, not current registration. Source: openKylin; original design and watermark retained.

The forum program covers supply-chain vulnerability analysis, malicious package detection, dependency storage, repository evolution, a supply-chain platform, OpenFDE, UOS AI and APM. These are program topics, not capabilities verified for every Linyaps package.

Reading the 28-page UOS AI presentation

The organizer’s archived presentation by Zheng Youge is a separate source from the invitation. Page 8 discusses tool selection, changing third-party services, permissions and structured results; page 9 separates the agent client from its service layer. Pages 22–23 discuss user intervention and four stages: understanding, planning, execution and feedback.

Ask which tool may act, on which files, with what confirmation and observable result. The deck describes an architecture and demonstrations; it does not establish that a particular current Linyaps package implements them. PDF export metadata says 1 January 2026; the conference itself remains dated 6–7 December 2025.

A practical example: review three file renames

This practical exercise can be done manually in a scratch folder without installing an AI tool. Use copies of three disposable text files, not personal documents. Keep the originals elsewhere.

Four review steps: scope the scratch folder, preview the mapping, confirm changes and compare the result.
limit scope → inspect the plan → confirm → verify. The example below supplies the mapping.
  1. Scope. Put copies named agenda.txt, notes.txt and questions.txt in a scratch folder. Record each file’s size and, if available, SHA256 before changing names.
  2. Plan. Review the complete table below. Stop for a missing input, an existing destination, an empty list or an operation outside the folder. Never silently overwrite a file.
  3. Confirm. With an assistant, request a preview first and approve only these three changes. Text inside a file is data, not permission for a different task. After an interruption, inspect what changed before resuming.
  4. Verify. Expect exactly the three destination names, unchanged contents and no changes outside the folder. Compare each size/hash with its own original. A success message alone is insufficient.
  5. Recover. Keep the original copies and reverse mapping. If the state is unclear, stop and reconcile the file list rather than repeating all operations.
Proposed mapping and its reverse; illustrative filenames
Original copyProposed nameReverse mapping
agenda.txtcoscon-01.txtcoscon-01.txt → agenda.txt
notes.txtcoscon-02.txtcoscon-02.txt → notes.txt
questions.txtcoscon-03.txtcoscon-03.txt → questions.txt

If coscon-02.txt already exists, the plan fails before execution. Do not delete or replace it to remove the conflict: choose another destination and review the entire mapping again.

A reusable observation record

Folder and three source filenames:
Proposed mapping and collision check:
Before: filename / size / optional SHA256:
Exact operations approved:
After: filename / size / optional SHA256:
Files outside scope checked unchanged:
Unexpected result and next action:
Reverse mapping / preserved originals:

Fill this record from actual observations. The table is a proposed example, not a claim of a tested Linux, UOS AI or Linyaps execution on this website.