Question 1

How do I install a specific old solc version with svm-rs?

Accepted Answer

Use 'svm install <version>' with the exact version number, like 'svm install 0.4.26'. First, check available versions with 'svm list' to see if it's supported. The tool fetches from official sources, but very old versions might not be listed.

Question 2

svm-rs vs solc-select: which is better for Ethereum development?

Accepted Answer

svm-rs is written in Rust and focuses on cross-platform CLI simplicity, ideal for Rust-heavy workflows. solc-select is Python-based and may integrate more seamlessly with Python tools; choose based on your ecosystem preference and need for advanced features like caching.

Question 3

Can I use svm-rs to manage solc versions in a Docker container?

Accepted Answer

Yes, but you'll need to install Rust and svm-rs inside the container, which adds image size and complexity. For lightweight containers, consider pre-downloading solc binaries directly or using multi-stage builds to minimize dependencies.

Question 4

How to switch solc versions per project with svm-rs?

Accepted Answer

svm-rs sets a global default via 'svm use', but for per-project control, you can override it by calling the specific binary path (shown with 'svm which') in your build scripts. It doesn't natively support project-specific config files like .solc-version.

Question 5

What happens if svm-rs can't download a solc version?

Accepted Answer

The tool relies on network access to fetch binaries; if downloads fail, you might need to check your connection or manually install from source. The README doesn't detail fallback options, so troubleshooting is limited.

Question 6

How to uninstall svm-rs completely from my system?

Accepted Answer

Since it's installed via Cargo, use 'cargo uninstall svm-rs' to remove the binary. Also, manually delete any cached solc versions in the default storage directory (location not specified in README) to free up space.

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