I’d also add:

* [Difftastic](https://difftastic.wilfred.me.uk/) — my go-to diff tool for years * [Nu shell](https://www.nushell.sh/) — a promising idea, but still lacking in design/implementation maturity

What I’d really like to see is a *viable projectional editor* and a broader shift from text-centric to data-centric tools.

The issue is that nearly everything we use today (editors, IDEs, coreutils) is built around text, and there’s no agreed-upon data interchange format. There have been attempts (Unison, JetBrains MCP, Nu shell), but none have gained real traction.

Rare “miracles” like the C++ --> Rust migration show paradigm shifts can happen. But a text → projectional transition would be even bigger. For that to succeed, someone influential would need to offer a *clear, opt-in migration path* where:

* some people stick with text-based tools, * others move to semantic model editing, * and both can interoperate in the same codebase.

What would be needed:

* Robust, data-native alternatives to [coreutils](https://wiki.archlinux.org/title/Core_utilities) operating directly on structured data (avoid serialize ↔ parse boundaries). Learn from Nushell’s mistakes, and aim for future-compatible, stable, battle-tested tools. * A more declarative-first mindset. * Strong theoretical foundations for the new paradigm. * Seamless conversion between text-based and semantic models. * New tools that work with mainstream languages (not niche reinventions), and enforce correctness at construction time (no invalid programs). * Integration of semantic model with existing version control systems * Shared standards for semantic models across languages/tools (something on the scale of MCP or LSP — JetBrains’ are better, but LSP won thanks to Microsoft’s push). * Dual compatibility in existing editors/IDEs (e.g. VSCode supporting both text files and semantic models). * Integrate knowledge across many different projects to distill the best way forward -> for example learn from Roslyn's semantic vs syntax model, look into tree sitter, check how difftastic does tree diffing, find tree regex engines, learn from S-expressions and LISP like languages, check unison, adopt helix editor/vim editing model, see how it can eb integrated with LSP and MCP etc.

This isn’t something you can brute-force — it needs careful planning and design before implementation. The train started on text rails and won’t stop, so the only way forward is to *build an alternative track* and make switching both gradual and worthwhile. Unfortunately it is pretty impossible to do for an entity without enough influence.

But almost every editor worth its salt these days has structural editing.

https://docs.helix-editor.com/syntax-aware-motions.html

https://www.masteringemacs.org/article/combobulate-structure...

https://zed.dev/blog/syntax-aware-editing

Etc etc.