CI Setup
Every video is a Playwright E2E test, so your own CI can re-record it on every
push and fail the build when the flow breaks. Any CI provider works: the
pipeline only needs Node.js, the screenci/ workspace of your repository, and
one secret.
The quickest way in is Add to CI on the project page of the web app. It gives you a prompt for your coding agent; the agent stores the secret in your CI provider, adds a pipeline (generated for GitHub Actions, from the templates below for the others), pushes, and triggers the first run. The project page then shows that recording as the CI preview. This page is the reference behind that prompt, and the manual path when you prefer to wire CI yourself. For the plain-language walkthrough of the hand-off (working from the repository, Add to CI, what a failed run means), see Repository and CI.
You will learn
- what the pipeline does
- GitHub Actions, the generated workflow
- other providers: GitLab CI, CircleCI, Buildkite, or a shell script
- which secret is required
- how CI signs in to your app
- how to keep CI recordings predictable
- why asset files do not need to be committed
- how to trigger recordings remotely
What the pipeline does
Every pipeline, whatever the provider, does the same five things from the repository root:
- Checks out the repository.
- Installs Node.js 24 (or the version your repository pins).
- Installs the workspace dependencies with a frozen lockfile inside
screenci/. - Builds and starts your app when the videos navigate to it (see Recording your own app).
- Runs
npx screenci previewinsidescreenci/withSCREENCI_SECRETin the environment.
In CI, preview and export check SCREENCI_SECRET first and fail with a
clear error when it is missing (instead of recording into an anonymous trial
session nobody can see). They then install the Playwright Chromium Headless
Shell, a quick no-op when it is already there. Set
SCREENCI_SKIP_BROWSER_INSTALL=1 to skip that step, for example when the
pipeline installs browsers itself.
preview re-records every requested video and updates the live previews.
Previews recorded in CI land in the project’s shared CI preview, kept
apart from the previews each team member records on their own machine. The
CLI detects CI from the usual environment variables (CI, GITHUB_ACTIONS,
GITLAB_CI, BUILDKITE, CIRCLECI); set SCREENCI_CI=1 or SCREENCI_CI=0
to override. Uploads made with a CI key or an org-wide API key always count
as CI, since the key belongs to no one in particular; uploads made with the
personal credential screenci setup sets up on a machine count as that
person’s, unless they run in CI.
Prefer final rendered videos instead of live previews? Swap the record step
for npx screenci export --no-wait --select. export re-records and starts
the final renders; --no-wait exits right after the upload instead of waiting
for rendering to finish and downloading the results, which keeps the CI job
short (the finished renders are available in the ScreenCI app); --select
makes each finished render the served version of its language, so public URLs
follow the CI export (without it, an export never changes what is served).
Export minutes are spent on every video that renders in the run.
GitHub Actions
Run this from the repository root:
npx screenci ci-workflowIt writes
.github/workflows/screenci.yaml
at the repository root (the only place GitHub discovers workflows), keyed to
the package manager your screenci/ workspace uses. Every step is scoped to
the workspace via working-directory. An existing file is never overwritten
(pass --force to replace it). screenci init --github-workflow writes the
same file while scaffolding; plain init adds no CI.
The workflow is deliberately minimal. It runs on pushes to main and on
workflow_dispatch
(manual runs), installs Node.js 24 and the workspace dependencies, and runs
screenci preview. The export --no-wait --select alternative is included as
a comment:
name: ScreenCI
on: push: branches: [main] workflow_dispatch:
jobs: record: runs-on: ubuntu-latest defaults: run: working-directory: screenci steps: - uses: actions/checkout@v5 - uses: actions/setup-node@v6 with: node-version: 24 - run: npm ci - run: npx screenci preview # Serve final rendered videos instead of live previews: # run: npx screenci export --no-wait --select env: SCREENCI_SECRET: ${{ secrets.SCREENCI_SECRET }}For dependency caching, start from the full workflow instead.
Full workflow
The generated workflow links here. This version adds what the minimal one leaves out:
- dependency caching
name: ScreenCI
on: push: branches: [main] workflow_dispatch:
jobs: record: runs-on: ubuntu-latest defaults: run: working-directory: screenci steps: - uses: actions/checkout@v5 - uses: actions/setup-node@v6 with: node-version: 24 cache: npm cache-dependency-path: screenci/package-lock.json - run: npm ci - run: npx screenci preview env: SCREENCI_SECRET: ${{ secrets.SCREENCI_SECRET }} # Serve final rendered videos instead of live previews: # run: npx screenci export --no-wait --selectReplace npm ci / npx and the cache settings when the workspace uses pnpm
or yarn.
Store the secret with the GitHub CLI, reading it from the workspace env file so it never lands in your shell history or a commit:
gh secret set SCREENCI_SECRET --body "$(grep '^SCREENCI_SECRET=' screenci/.env | cut -d= -f2-)"Or paste it under Settings > Secrets and variables > Actions > Repository secrets.
Other providers
Keep the five steps and your repository’s own
conventions (runner image, caching, branch filters). SCREENCI_SECRET comes
from the provider’s secret store; never write it into the pipeline file.
GitLab CI
Add the variable under Settings > CI/CD > Variables (masked), or with
glab variable set SCREENCI_SECRET --masked --value "$(grep '^SCREENCI_SECRET=' screenci/.env | cut -d= -f2-)".
screenci: image: node:24 rules: - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH - when: manual cache: key: screenci-$CI_COMMIT_REF_SLUG paths: [screenci/node_modules] script: - cd screenci - npm ci - npx screenci previewCircleCI
Add SCREENCI_SECRET under Project Settings > Environment Variables (or a
context the job uses).
version: 2.1jobs: screenci: docker: - image: cimg/node:24.0 steps: - checkout - run: name: Install workspace working_directory: screenci command: npm ci - run: name: Record previews working_directory: screenci command: npx screenci previewworkflows: record: jobs: - screenci: filters: branches: only: mainBuildkite
Put SCREENCI_SECRET in the pipeline environment or the secrets plugin your
organisation uses.
steps: - label: ':video_camera: ScreenCI' if: build.branch == "main" commands: - cd screenci - npm ci - npx screenci previewAnything else
Bitbucket Pipelines, Jenkins, Azure Pipelines, a cron job on a VM: run this
script with SCREENCI_SECRET exported and Node.js 24 installed, and it is
CI.
#!/usr/bin/env bashset -euo pipefailcd screencinpm cinpx screenci previewReplace npm ci with pnpm install --frozen-lockfile or
yarn install --frozen-lockfile when the workspace uses that manager, and
npx with pnpm exec or yarn accordingly.
Required secret
The pipeline needs SCREENCI_SECRET in its environment. Add to CI mints a
CI key for the project (listed as “CI: screenci/.env for the agent to store; wiring CI by hand, copy any key from
that page. Uploads made with a CI key show as “CI” in the app. In CI, preview
and export fail early if the secret is missing.
Signing in from CI
Locally you sign in once in a browser and every recording replays that session (Signing In). CI has nobody to open a browser for, so it has to be handed a session instead.
Use a dedicated CI test account. Never a real person’s, and never one with access to real customer data: the videos show whatever that account sees, and its credentials end up in your repository’s secrets.
Option 1: carry a saved session
Copy the contents of screenci/.screenci/auth/default.json into a repository
secret (APP_SESSION_STATE below) and write it back to a file before the
record step:
- name: Restore the app session working-directory: screenci run: | mkdir -p .screenci/auth printf '%s' "$APP_SESSION_STATE" > .screenci/auth/default.json env: APP_SESSION_STATE: ${{ secrets.APP_SESSION_STATE }}Nothing else changes: the config picks that file up the same way it does
locally. The catch is that the session expires like any other, so someone has
to run npx screenci login and refresh the secret when it does.
Option 2: sign in from a script in the repository
A small Playwright script signs the CI test account in before the record step
and saves the session where SCREENCI_APP_STORAGE_STATE points. It keeps
working without anyone tending to it.
import { chromium } from '@playwright/test'
const statePath = process.env.SCREENCI_APP_STORAGE_STATE!const browser = await chromium.launch()const context = await browser.newContext()const page = await context.newPage()
await page.goto(`${process.env.APP_URL}/login`)await page.getByLabel('Email').fill(process.env.CI_APP_USERNAME!)await page.getByLabel('Password').fill(process.env.CI_APP_PASSWORD!)await page.getByRole('button', { name: 'Sign in' }).click()await page.waitForURL('**/dashboard')
await context.storageState({ path: statePath })await browser.close()- name: Sign in to the app working-directory: screenci run: npx tsx auth/sign-in.ts env: APP_URL: https://staging.example.com CI_APP_USERNAME: ${{ secrets.CI_APP_USERNAME }} CI_APP_PASSWORD: ${{ secrets.CI_APP_PASSWORD }} SCREENCI_APP_STORAGE_STATE: .screenci/auth/default.jsonSet SCREENCI_APP_STORAGE_STATE on the record step too, so it replays the
session the script just wrote.
When the CI account has two-factor
An authenticator app does not need a phone in CI. When you enrol the account,
the QR code encodes an otpauth:// URI whose secret parameter is the shared
key; any TOTP library turns that key plus the current time into the same
six-digit code the app expects.
otpauth is one such library. Save
the key as a repository secret and add a step to the script:
import { TOTP } from 'otpauth'
if (process.env.CI_APP_TOTP_SECRET) { const code = new TOTP({ secret: process.env.CI_APP_TOTP_SECRET }).generate() await page.getByLabel('Authentication code').fill(code) await page.getByRole('button', { name: 'Verify' }).click()}Treat that key as seriously as the password: it produces valid codes forever,
and it is enough on its own to defeat the second factor. It belongs in a
repository secret on a dedicated CI test account, and nowhere else. Never put
one on a real person’s account, and never add one to a laptop’s
screenci/.env: screenci login needs nothing of the sort, because a person
types the code themselves once.
Recording your own app
If your videos navigate to a locally-running app via webServer in
screenci.config.ts, the pipeline needs two extra steps so the app is built
and reachable when the record step runs.
Update screenci.config.ts
In CI, use a static serve command (npm run preview for Vite, or your
framework’s equivalent) instead of the dev server. The dev server’s dependencies
live in the root node_modules, which the generated workflow does not install
by default. A built bundle also records more deterministically than a
hot-reloading dev server.
webServer: { command: process.env.CI ? 'npm run preview' : 'npm run dev', cwd: '..', // path from screenci/ to the project root url: process.env.CI ? 'http://localhost:4173' : 'http://localhost:5173', reuseExistingServer: !process.env.CI, timeout: 120_000,},use: { baseURL: process.env.CI ? 'http://localhost:4173' : 'http://localhost:5173',},The port split (4173 for vite preview, 5173 for vite dev) is the Vite
default. Adjust both values to match your framework’s preview and dev ports.
Update the pipeline
For GitHub Actions, add install and build steps for the root app before the
screenci install step. The generated workflow runs every step inside
screenci/ by default, so these two steps set working-directory: . to run
at the repository root. Other providers: add the same two commands before the
workspace install.
- name: Install app dependencies working-directory: . run: npm ci
- name: Build app working-directory: . run: npm run build
- run: npm ciKeep recordings deterministic
ScreenCI records the browser in real time, so the recording reflects the CI machine’s speed. Recordings are most reliable when the environment is stable, feature flags and seeded data are fixed, authentication happens before visible recording, and visible waits are tied to UI state. Fix flaky timing in the script locally before pushing it to CI.
For faster, smoother recordings:
-
Run one worker. The generated config sets
workers: process.env.CI ? 1 : undefined. -
Use a faster runner. Recording is CPU- and GPU-bound; the free 2-core runners show the most pauses. See larger runners.
-
Keep setup in
hide()so load and hydration time stays out of the recording. -
Keep CI on the
fastencoder (theinitdefault). See Recording encoder.video.recordOptions({// Lightest encode on constrained CI runners; full quality locally.encoder: process.env.CI ? 'fast' : 'sharp',})('My video', async ({ page }) => {/* ... */})
Asset files do not need to be committed
Overlay images and videos and narration media (the files you
reference with video.overlays(...) and narration media
cues) are uploaded to ScreenCI the first time you record with the files present. On
later runs they are reused: ScreenCI matches each asset to the version uploaded
for the same video (by file path, or by overlay name) and reuses it.
That means you do not have to commit these (often large) media files to the
repository. The screenci init scaffold gitignores the recordings/assets/
folder for exactly this reason. A typical flow:
- Record locally once with the asset files present. The recording uploads them.
- Keep the files out of git (or delete them). The committed
.screenci.tsscripts still reference them by path. - On CI, the files are absent. Recording does not fail: each missing asset is
logged (for example
Locally missing overlay, reusing the previously uploaded version) and reused from the previous upload.
If a referenced file is missing locally and no previously uploaded version exists for that video (for example a brand new overlay that has never been recorded with its file present), the upload fails with a clear message telling you to record once with the file present, or to commit it. This keeps a video from silently rendering without an overlay or narration clip.
Notes:
- The match is per video and per project. Record a video at least once with each asset present so a version exists to reuse.
- Overlays are matched by their declared name, so renaming an overlay (or its file) means the next record needs the file present again.
- Custom voice sample files (the clip you clone a voice from) follow the same rule: record once with the sample present so it uploads, and later runs reuse the cloned voice from that upload even when the file is absent locally.
- Overlays that use a shared branding asset
(
{ branding: '<name>' }) never need a local file at all: nothing is uploaded for them, and the export resolves the name against the Branding page. The name is checked before the upload, so a typo fails right away. - This is independent of
.screenci/, which is always gitignored and holds the local recording output.
Reading back render status
When CI runs the export alternative,
screenci export waits for renders and exits 0 only when every
requested video rendered and downloaded, so a green export step means the
videos are done. When the videos are consumed from the web instead of as
files, screenci export --no-wait --select skips the wait and the download
and serves each render as it finishes; the step then only verifies that
recording and uploading succeeded. To read the
results back later (or from another job), run
screenci info: it reports each
language’s render status (finished, rendering, or failed) and public
URLs as JSON.
Trigger recordings remotely
Besides the push trigger, the generated GitHub Actions workflow declares
workflow_dispatch, so a recording can be started without a commit. The
Record all prompt on the project page has your coding agent trigger the
pipeline (gh workflow run screenci.yaml, a push to the recording branch, or
the provider’s run button).
See Repository and CI for how the team uses this.
What’s next
- Repository and CI for the plain-language hand-off.
- Screen Audio for capturing system audio in CI with a virtual audio device.
- Public URLs and Embeds for delivery.