> ## Documentation Index > Fetch the complete documentation index at: https://site.aspect.build/llms.txt > Use this file to discover all available pages before exploring further. # Outline > Bazel 104 covers C and C++ with hermetic LLVM toolchains, rules_cc, rules_foreign_cc for legacy cmake projects, and external library dependencies. {!user.loggedIn ? ( Sign up for a free Aspect account to access the full training course. Already have one? Log in. ) : null} Given the shortcomings of alternatives like `cmake`, Bazel is a pretty great choice for C++ applications, even if you don’t need a multi-language or multi-application monorepo. We’ll use the following tools and libraries: * [https://registry.bazel.build/](https://registry.bazel.build/) has a bunch of C++ libraries which can be built from source within your build. * [https://registry.bazel.build/modules/toolchains\_llvm](https://registry.bazel.build/modules/toolchains_llvm) adds a hermetic C++ toolchain to Bazel, which can include a sysroot that fully decouples build results from packages installed on the host machine. There are options for other compilers like `gcc` too. * [https://registry.bazel.build/modules/rules\_foreign\_cc](https://registry.bazel.build/modules/rules_foreign_cc) lets you re-use legacy builds under Bazel, for example using cmake. * [https://github.com/bazelbuild/rules\_cc](https://github.com/bazelbuild/rules_cc) is a re-implementation of Bazel’s built-in C++ rules in Starlark, Bazel’s extension language. * [Aspect CLI](/docs/cli/overview) includes a `gazelle` command that can do some auto-generation of `BUILD` files, freeing you from some of the tedium of specifying sources and dependencies. Before starting the course, we assume you’ve already taken [Bazel 101](/learning/bazel-101). You can clone the [C/C++ starter template](https://github.com/aspect-starters/cpp) for a working setup to follow along. Watch a live presentation of this course: