justcallmekoko/ESP32Marauder

Reduce app size by 40KB to make room for direct Wigle and WDGWars upload

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#1,335 opened on Jun 24, 2026

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Priority 1help wanted

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Description

In order to integrate direct upload features for wardriving in the Marauder firmware, several libraries must be imported, such as WiFiClientSecure, which consume a large portion of app space. I have been making progress reducing the size of the Marauder binary refactoring portions of code which make inefficient use of String variables, etc. but much more is needed. My goal is to preserve the functionality of Marauder, not make any concessions with features, keep SPIFFS and OTA (needed for SD update), and reduce the binary size enough to fit these new features.

Contributor guide

Research direction
Profile binary size using tools like 'size' or 'nm', identify large symbols and functions using String objects, and refactor them to use char arrays or compile time constants while preserving functionality.
Tech stack
cpp
Domain
backend
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++ESP32
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30