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With AI, Everyone is a Dev. EveryDev.ai © 2026
    1. Home
    2. Developers
    3. Aleksander Mikucki

    Aleksander Mikucki

    Aleksander Mikucki is an individual React Native engineer, developer-relations professional and open-source creator, not a company. His Screenmap project helps Expo/React Native teams preview the screens affected by a pull request by running the app in CI, capturing reachable screens and posting a visual review to the pull request.

    Visit Website

    At a Glance

    1Tool Listed
    3Products
    9Capabilities
    Discussions
    Krakow, PolandHeadquarters
    2026Est.
    Focus Areas
    Visual Testing
    CI/CD Tools
    Mobile App Development
    Connect
    Latest News
    React Navigation made a first-class route provider, with provider detection and custom-provider supportAug 30, 2026
    Screenmap added analytics to the map viewer and excluded the project's own screenshotter trafficAug 28, 2026
    Markets
    • Expo and React Native development teams
    • Mobile engineering and pull-request reviewers
    • Designers collaborating with mobile teams
    • Teams using GitHub Actions and simulator-based CI
    • +1 more

    AI Tools by Aleksander Mikucki

    (1)
    View Screenmap
    Screenmap tool icon

    Screenmap

    Visual Diff Tool for React Native

    Visual TestingCI/CD ToolsMobile App Dev

    Discussions

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    Latest News

    08/30/2026

    React Navigation made a first-class route provider, with provider detection and custom-provider support

    github.com
    08/28/2026

    Screenmap added analytics to the map viewer and excluded the project's own screenshotter traffic

    github.com
    08/27/2026

    Deep-link arrival checks, drifted-flow recovery and agent repair paths were added

    github.com
    08/26/2026

    The project was renamed from expo-map to Screenmap and the .scrmap bundle format and viewer branding shipped

    github.com

    Products & Services

    3
    Screenmap GitHub Action
    2026

    The aleqsio/screenmap@v1 Action runs in a repository's GitHub Actions, maps or restores a baseline of the app, determines which routes a pull-request diff can reach, captures affected screens on a simulator and posts a sticky pull-request comment with screenshots, changed regions and a viewer link. Source: https://github.com/aleqsio/screenmap

    Screenmap Claude Code plugin / local mapper
    2026

    A /screenmap Claude Code plugin that helps learn or map an Expo/React Native app locally, records flows and produces the shared .scrmap bundle. Source: https://github.com/aleqsio/screenmap

    Screenmap map viewer
    2026

    The browser viewer at app.screenmap.dev opens .scrmap bundles, shows the app's route/screen graph, replays flows and lets teams share a map with reviewers or designers. Source: https://github.com/aleqsio/screenmap

    Market Position

    Screenmap positions itself as an open-source, CI-native visual review and navigation-mapping tool for Expo/React Native. Its differentiators are route-aware suspect selection instead of recapturing an entire app for every PR, repository-owned screenshots, deterministic committed-flow replay, and a shared local/CI/browser map. The adjacent alternatives are manual simulator review, screenshot-regression tools and generic web preview systems; Screenmap is aimed specifically at mobile app navigation and pull-request context. Source: https://screenmap.dev/

    Leadership

    Founders

    AM

    Aleksander Mikucki

    React Native engineer and DevRel at Software Mansion; his personal site says he works on Expo SDK areas including Filesystem, Expo UI and Modules Core, and lists open-source projects including react-native-url-router and npx new-arch. His GitHub account is aleqsio and he is the copyright holder named in Screenmap's MIT license. Sources: https://aleqsio.com/, https://github.com/aleqsio/screenmap/blob/main/LICENSE

    Founding Story

    Screenmap was created to address the gap in mobile pull-request review: web pull requests commonly provide a preview URL, while mobile reviewers often have to install a build and find the relevant screen themselves. The initial vision was a CI-native, open-source map of an Expo/React Native app that shows every screen and highlights what a pull request changed, without requiring someone to write a test. Source: https://screenmap.dev/

    Business Model

    Revenue Model

    Open-source, self-hosted tooling rather than a disclosed paid SaaS model. The MIT-licensed Action runs in the customer's own GitHub Actions, and the landing page says users pay for their own CI minutes and agent; the hosted simulator option is described as coming soon. Sources: https://screenmap.dev/, https://github.com/aleqsio/screenmap/blob/main/LICENSE

    No IPO or public-company status is indicated; this is presented as an individual creator's open-source project.

    Target Markets

    Industries & Segments
    • Expo and React Native development teams
    • Mobile engineering and pull-request reviewers
    • Designers collaborating with mobile teams
    • Teams using GitHub Actions and simulator-based CI
    • Developers using Expo Router or React Navigation
    Use Cases
    • Visual review of Expo or React Native pull requests
    • Mapping an unfamiliar mobile app locally
    • Replaying and sharing app navigation flows with designers and reviewers
    • Detecting which screens are affected by route or source-code changes
    • Creating a reusable baseline of an app's screens in CI

    Quick Facts

    Headquarters
    Krakow, Poland
    Founded
    2026

    History & Milestones

    August 8, 2026

    The repository history identifies the earlier expo-map implementation as an app-navigation mapping skill, .appmap format and visualiser, establishing the predecessor of Screenmap. Source: https://github.com/aleqsio/screenmap/commit/64ef71ec488b8f5a4090231d090e238cd1657888

    August 26, 2026

    The project was renamed from expo-map to screenmap; the bundle format became .scrmap/.diff.scrmap, the config directory became .screenmap, the cache branch became screenmaps and the viewer was restyled. Source: https://github.com/aleqsio/screenmap/commit/9a06ecabd22b7bf5700a7925ec770cf5b4635671

    August 26, 2026

    The Screenmap Claude Code plugin was shipped and the GitHub Action references were moved to aleqsio/screenmap@v1. Source: https://github.com/aleqsio/screenmap/commit/24f8a9acf34260b1c1783de5ff8f57c09c597493

    August 27, 2026

    Deep-link landing checks and recovery for drifted flows were added, including OCR verification and a path to re-record flows. Source: https://github.com/aleqsio/screenmap/commit/28df2f45d08f471c33f2ba0c7a0cb0deda5ed5e2

    August 30, 2026

    React Navigation became a first-class route provider alongside Expo Router, with provider detection, navigation-only screens and custom-provider support. Source: https://github.com/aleqsio/screenmap/commit/3ffc633a923d0c03d4c2b4e7cfd40ba799be57d8

    Key Capabilities

    9
    Static route parsing for Expo Router and React Navigation, with a custom-provider escape hatch
    Interactive whole-app screen maps showing routes, source files and links between screens
    Pull-request before/after screenshots with changed regions highlighted
    Baseline maps cached on a repository-owned screenmaps branch
    Committed Argent flows replayed deterministically without an LLM
    Headless coding-agent exploration for screens without a committed flow

    Integrations & Partnerships

    Platform Integrations

    • GitHub Actions on macOS runners
    • Expo and React Native apps using Expo Router or React Navigation
    • Expo Application Services (EAS) simulator builds, or customer-provided .app builds
    • Claude Code local plugin and headless agent lane
    • Browser-based viewer at https://app.screenmap.dev
    • GitHub pull-request comments, repository branches and workflow artifacts

    Key Partnerships

    GitHub Actions integration through aleqsio/screenmap@v1
    Expo/EAS integration for simulator development-client builds
    Argent flow runner integration for deterministic navigation replay

    Connect

    Website
    screenmap.dev
    GitHub
    aleqsio

    AI Topics

    3

    Aleksander Mikucki focuses on these topics:

    Visual Testing(1)
    CI/CD Tools(1)
    Mobile App Development(1)
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