compilers webassembly developer-tools proof-of-work

I hate compilers

xeiaso.net

June 18, 2026

3 min read

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Summary

Anubis will implement WebAssembly-based proof of work checks, allowing administrators to utilize a non-SHA256 method for website protection. The check logic will be centralized and shared between the client and server.

Key Takeaways

Anubis is implementing WebAssembly-based proof of work checks to allow non-SHA256 methods for website protection.
The project aims to ensure that check logic is defined in one place for both client and server, maintaining synchronization.
Reproducible builds in C/C++ development are challenging due to factors like the use of macros that introduce nondeterministic output.
The author is bundling a specific version of the wasm2js tool to ensure consistent output across different environments.

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Analysis ready

Community Sentiment

Mixed

Positives

Using Nix can significantly improve build reproducibility by creating a hermetic environment that mitigates issues like nondeterministic timestamps, which is crucial for reliable software development.
The Nix sandbox effectively replaces calls for time with a fixed value, enhancing determinism in builds and addressing many common pitfalls in low-level programming.

Concerns

The reliance on energy-intensive proof-of-work functions to prevent scraping raises serious concerns about accessibility and sustainability, potentially alienating users.
There is skepticism about whether any proof-of-work solution can balance user accessibility with security against powerful organizations, leading to wasted time and frustration.