01
Offline-first & data privacy
local-firstI strongly advocate for offline-first architecture and open-source software. In an era where user data privacy is constantly compromised, local-first applications are essential to restoring data ownership.
Portfolio · 2026
Aydın, Türkiye
Software Engineer · Computer Engineering
Mustafa Semih
Arslan
Computer Engineering student at Adnan Menderes University. I design architecture first and ship with AI as an accelerator — building offline-first, privacy-respecting software.
~ Offline-first by default.
sarsdev@sarsdev — zsh99%
$ whoami
mustafa semih arslan
$ cat status.txt
Building offline-first software.
FocusOffline-first/
Based inAydın, TR/
StudyingComputer Eng./
StatusBuilding/
Open toCollab/
FocusOffline-first/
Based inAydın, TR/
StudyingComputer Eng./
StatusBuilding/
Open toCollab/
FocusOffline-first/
Based inAydın, TR/
StudyingComputer Eng./
StatusBuilding/
Open toCollab/
FocusOffline-first/
Based inAydın, TR/
StudyingComputer Eng./
StatusBuilding/
Open toCollab/
01Selected Work
Things I'm building.
A mix of independent products, open-source utilities, and system work. Architecture first — then ship fast with AI as the accelerator.
01bFrom GitHub · @sarsdev-tr
RepositoryLanguageActivityUpdated
02Tech Stack
Tools I reach for.
Focused set of technologies I use daily. I value tools that respect user data, build fast, and stay stable over time.
Frontend & Mobile05
- React Nativecross-platform mobile
- Expomanaged mobile tooling
- Electrondesktop apps
- HTML5markup
- CSS3styling
Backend & Database04
- Node.jsruntime / APIs
- Flaskpython web
- Supabasepostgres + auth
- Pythonautomation / scripts
Also working with04
- Linuxdaily driver
- Gitversion control
- TypeScripttype-safe JS
- Next.jsthis site
03About & Philosophy
How I think about software.
I believe software should empower users — respecting privacy, running locally whenever possible, and solving real everyday friction.
Computer Engineering student at Adnan Menderes University. I design architecture first and ship with AI as an accelerator — building offline-first, privacy-respecting software.
02
AI as an accelerator, not a replacement
architecture-ledI don't rely on AI to write code blindly. I design the core architecture, define the application logic and system flow, and leverage AI to build, optimize, and iterate faster.
03
Problem-driven development
practicalI build software to fix real inefficiencies, optimize my personal workflows, and solve actual everyday problems — not to chase trends.
04Timeline
My journey so far.
Education, independent engineering projects, and open-source milestones.
Timeline
2024 — PresentPresent
B.S. Computer Engineering
Adnan Menderes University·Aydın, Türkiye
Undergraduate studies in computer engineering — algorithms, systems, and software architecture.
2024
Building Lifta
Independent project·Remote
Designing an offline-first fitness tracking app from the ground up — architecture, data layer, and mobile UX.
2023
Open-source contributions
GitHub·Remote
Automation scripts and desktop utilities.
Earlier
Self-taught engineering
Independent·—
Started with system tweaking and scripting, grew into full application development.
05Contact
Let's connect.
Open for collaboration, open-source projects, or technical conversations.
offline-first✦privacy✦open-source✦local-first✦architecture-led✦practical✦no bloat✦offline-first✦privacy✦open-source✦local-first✦architecture-led✦practical✦no bloat✦
offline-first✦privacy✦open-source✦local-first✦architecture-led✦practical✦no bloat✦offline-first✦privacy✦open-source✦local-first✦architecture-led✦practical✦no bloat✦