We can install buck and its dependency JDK 8 via Homebrew: brew tap AdoptOpenJDK/openjdk brew cask install adoptopenjdk8 brew tap facebook/fb brew install buck Telegram-iOS uses buck to build third-party libraries and generate Xcode workspace files. My develop machine runs macOS Catalina 10.15.7 with Xcode 12.2 (12B45b). Please refer to Build and Run Telegram-iOS v7.3 in Simulator with Bazel if you use macOS Big Sur. You can fast forward to the final section if you don’t want to read the details.

It involves installing the necessary tools and modify parts of the project code to make it work. This tutorial illustrates my way to fix the issues. It doesn’t cover how to build and run in Simulator. It runs an automation script file to generate an IPA file without showing how to open the project in Xcode IDE. Xcode 11.x is outdated and the latest Xcode 12.x is 15 times faster on code completion. Running another clone of macOS and Xcode needs a powerful machine. The guide has problems for developers who want to work with the code: The official guide is present to verify the build is reproducible, which requires an installation of macOS Catalina, Xcode 11.x, and other tools inside a Parallels virtual machine.

Although it’s a great move, you may find it’s still confusing how to build and run the iOS project with minimal effects. Telegram started the program of to release its client source code in a more regular schedule.

Telegram x for ios