struct engineer {
char *name = "A. Rahsepar";
char *role[] = {"Network Engineer", "Linux & Android Engineer", "Kernel Developer"};
int experience_years = 6;
char *base = "Shiraz, Iran";
char *daily_driver[] = {"Linux 5.10 LTS", "Android 16/17", "MTK MT6895 (xaga)", "C", "MikroTik / OpenWRT"};
char *currently = "Porting OpenWRT for ZLT X28 + ESK Kernel + Infinity X A17";
};6 years building and breaking Linux & Android devices. These days I'm deep in custom kernels (ESK / 5.10 LTS), Android device bring-up for Xiaomi xaga (MT6895), and network engineering — MikroTik / RouterOS + OpenWRT porting (ZLT X28).
- 🔥 Maintaining ESK-Kernel-Reborn for xaga family — POCO X4 GT / Redmi Note 11T Pro / K50i
- 📱 Device maintainer — Infinity X A17 v4.1: device trees, vendor, HALs, sepolicy, ViPER, Dolby
- 🌐 Network engineer — MikroTik / RouterOS, firewall / NAT / QoS / VPN, OpenWRT porting & bring-up for ZLT X28
- 🛠️ Low-level tinkerer — preloader, LK, sec_cfg, MTD, eng firmware (check my local lab 👀)
Core / Kernel / OS
Android Bring-up
Network / RouterOS
Tools
| Project | Description | Stack |
|---|---|---|
| ESK-Kernel-Reborn-Releases ⭐3 | ESK Reborn releases — xaga family · Google android12-5.10 base · Android 16/17 · Linux 5.10 LTS · ReSukiSU / SUSFS / LXC | C Kernel 5.10 LTS |
| android_kernel_xiaomi_mt6895 ⭐2 | ESK Kernel source for xaga(in)/xagapro(in) — POCO X4 GT | C MT6895 |
Full device stack I co-maintain for POCO X4 GT (xaga) with coolcatvn + xaga devs:
| Project | Description |
|---|---|
| android_device_xiaomi_xaga | Device tree — Infinity X A17 v4.1 |
| android_device_xiaomi_mt6895-common | Common tree MT6895 |
| android_vendor_xiaomi_xaga | Vendor blobs (16.2 → 17.0 mirror) |
| android_vendor_xiaomi_mt6895-common | Common vendor |
| android_hardware_mediatek | MTK HALs |
| android_hardware_xiaomi | Xiaomi HALs |
| android_device_mediatek_sepolicy_vndr | Vendor SEPolicy |
| OTA | Infinity X OTA JSON — branch 17 |
| packages_apps_ViPER4AndroidFX | ViPER FX |
| hardware_dolby | Dolby |
| miuicamera-xaga | MIUI Camera |
Everything MTK/xaga breaks on A17, root-caused at source level and packaged as an idempotent maintenance kit — re-applied after every
repo sync, verified by script, and live-validated on device:
| Project | Description |
|---|---|
| infinity-xaga-fixes | 🧰 MTK_IMS_FIXES kit — apply_fixes.sh + verify_fixes.sh + snippets + full debugging chronicle |
| android_vendor_mediatek_ims | IMS tree with VoLTE availability overrides (both slots, worldwide) |
| Fix | What it solves |
|---|---|
| FIX 1–2 | vtservice stack drop → VoLTE dead on all A17 builds (media.VTS never starts) |
| FIX 3–5 | IMS availability overrides + EngineerMode APK/VINTF restore |
| FIX 8 | app_zygote sepolicy for bundled-engine Chromium (GoLogin etc.) |
| FIX 9 | Dolby vendor.dolby.media.c2@1.0-service crash (RefBase ABI mismatch) — dropped from build |
| FIX 10 | Bypass charging made permanent (ueventd + sepolicy) |
| FIX 11 | Chromium sandbox crash: app-zygote seccomp SIGSYS 149 — grant full isolated UID space in ProcessList (0 kills in stress vs 12 stock) |
Currently focused on real infra work — porting OpenWRT for ZLT X28 + MikroTik production nets.
| Focus | Details | Stack |
|---|---|---|
| OpenWRT Port — ZLT X28 🚧 | Board bring-up, DTS, NAND / modem / Wi-Fi drivers, LuCI, sysupgrade | OpenWRT Linux DTS LuCI |
| MikroTik / RouterOS | Firewall / NAT, QoS / Queue, VPN / WireGuard, CAPsMAN, monitoring | RouterOS Firewall QoS |
| Infra / Automation | Net install scripts, backups, Python tooling for routers | Python Bash |
- 📡 Porting OpenWRT for ZLT X28 — DTS, drivers, NAND, modem, Wi-Fi, LuCI
- 🔧 Shipping ESK Reborn — Android 16/17 on 5.10 LTS, tested for daily + gaming
- 📦 Maintaining Infinity X A17 v4.1 trees for xaga
- 🩹 Shipping the MTK fix pack (FIX 1–11) —
infinity-xaga-fixes: VoLTE/IMS, EngineerMode, Dolby c2, bypass charging, app-zygote seccomp - 📶 Building MikroTik setups — Firewall / NAT / QoS / WireGuard VPN
- 🧪 Lab: preloader / LK / eng firmware, MTD rebuilds, bypass-charger experiments on MTK
“Talk is cheap. Show me the dmesg.” — kernel edition
📍 Shiraz, Iran · ⚡ Open to kernel / ROM / network collabs