Gesture typing not an option on /e/os

[glocq]

Describe the bug

The gesture typing option is not available even after loading the library.

Here is the line in the Heliboard logs which I assume is most relevant (I can provide more context if needed):

2026-03-04 11:27:17.911385 W JniUtils: Could not load user-supplied library
java.lang.UnsatisfiedLinkError: dlopen failed: library "libc++.so" not found: needed by /data/data/helium314.keyboard/files/libjni_latinime.so in namespace clns-7

To Reproduce

• Install Heliboard on /e/os
• Follow the steps to install the gesture typing library here https://github.com/Helium314/HeliBoard/wiki/Tutorial:-How-to-Contribute-Gesture-Data
• As recommended in the page linked above, download the .so file, and do "Load library"
• The "Gesture typing" option does not become available

Expected behavior

After downloading the .so file, and doing "Load library", the "Gesture typing" option should becomes available.

App version

3.7

Device:

• Model: Fairphone 5
• OS: /e/OS 3.5-a15-20260211580868-official-FP5

[anauta]

Same:

03-04 13:00:59.937 9800 9800 W JniUtils: java.lang.UnsatisfiedLinkError: dlopen failed: library "libc++.so" not found: needed by /data/data/helium314.keyboard/files/libjni_latinime.so in namespace clns-7

App version: 3.7

Device:
Model: Redmi Note 8T
OS: Android 15 (LineageOS variant)