Bcvi allows running a full-screen vi editor session over a limited bandwidth or high-latency connection, such as a serial console or SSH connection with significant lag. It achieves this by using a "back-channel" to send screen updates efficiently. Instead of redrawing the entire screen for every change, bcvi only transmits the differences, leading to a significantly more responsive experience. This makes editing files remotely over constrained connections practical, providing a near-native vi experience even with limited bandwidth. The back-channel can be another SSH connection or even a separate serial port, providing flexibility in setup.
This blog post details how to implement custom syntax highlighting in Emacs using tree-sitter. The author demonstrates creating a minor mode for highlighting TODO items and FIXMEs in comments within C++ code. This involves defining specific queries that target the comment nodes in the tree-sitter parse tree and then associating faces (colors and styles) with the captured nodes. The example provides a practical illustration of leveraging tree-sitter's structured code understanding to achieve more precise and context-aware highlighting than traditional regular expression-based approaches. The post also briefly covers how to incorporate these queries into a theme for broader application and includes a troubleshooting tip for ensuring tree-sitter highlighting is active.
HN commenters largely praised the integration of tree-sitter into Emacs, highlighting the significant improvements in syntax highlighting accuracy and performance. Some expressed excitement over the potential for more advanced features like semantic highlighting and code navigation enabled by tree-sitter's deeper understanding of code structure. A few users shared their personal experiences with setting up and using tree-sitter in Emacs, offering tips and workarounds for common issues. One commenter noted the wider adoption of tree-sitter across various editors and its positive impact on the developer experience. Others discussed the technical details of tree-sitter's implementation, comparing it to traditional regular expression-based highlighting. A couple of comments touched on the potential for future improvements, such as asynchronous parsing and better support for more obscure languages.
Micro Journal is a minimalist, distraction-free writing tool designed for quick journaling and note-taking. It prioritizes simplicity and privacy by storing entries locally in plain text files, eliminating the need for accounts, cloud syncing, or databases. The interface is deliberately barebones, offering only essential features like creating, saving, and searching entries. This focus on core functionality aims to encourage regular writing by reducing friction and ensuring quick access to past thoughts and ideas.
Hacker News users generally praised the Micro Journal for its minimalist design and focus on distraction-free writing. Several commenters appreciated its open-source nature and the use of readily available components, making it easy to replicate or modify. Some discussed the potential benefits of e-ink for focused writing and its lower power consumption. A few expressed concerns about the limited functionality compared to more feature-rich options, while others suggested potential improvements like a larger screen or different keyboard layouts. The project sparked discussion about the value of dedicated writing devices and the desire for simpler, more focused technology. Some users shared their own experiences with similar minimalist writing setups and offered alternative software suggestions.
Augment.vim is a Vim/Neovim plugin that integrates AI-powered chat and code completion directly into the editor. It leverages large language models (LLMs) to provide features like asking questions about code, generating code from natural language descriptions, refactoring, explaining code, and offering context-aware code completion suggestions. The plugin supports multiple LLMs, including OpenAI, Cohere, and local models, allowing users flexibility in choosing their preferred provider. It aims to streamline the coding workflow by making AI assistance readily accessible within the familiar Vim environment.
Hacker News users discussed Augment.vim's potential usefulness and drawbacks. Some praised its integration with Vim, simplifying access to AI assistance. Others expressed concerns about privacy and the closed-source nature of the plugin, particularly given its reliance on potentially sensitive code. There was also debate about the actual utility, with some arguing that existing language servers and completion tools already provided sufficient functionality. Several commenters suggested open-sourcing the plugin or using an open-source LLM to alleviate privacy concerns and foster community contribution. The reliance on a proprietary API key for OpenAI's models was also a point of contention. Finally, some users mentioned alternative AI-powered coding tools and workflows they found more effective.
Zeminary Arrays offers an experimental web app providing infinitely expanding horizontal and vertical arrays of text editors. Each editor can be used for coding, writing, or note-taking, and supports Markdown rendering. Users can create new arrays, add or delete individual editors within them, and navigate the grid seamlessly. The application aims to provide a flexible and expansive workspace for managing various text-based tasks concurrently.
HN users generally praised the clean UI and unique approach of the infinite horizontal array of text editors. Several commenters questioned the practical use cases, wondering what problems it solves beyond novelty. Some suggested potential applications like managing code snippets, comparing different versions of text, or outlining long documents. A few users experienced minor glitches, like unexpected behavior with the backspace key. There was also discussion about the technical implementation, particularly regarding memory management with large arrays and the potential benefits of using a different data structure. One commenter appreciated the editor's mobile-friendliness. Overall, the reception was positive, with curiosity about its potential applications driving the conversation.
This blog post details the author's highly automated Vim setup, emphasizing speed and efficiency. Leveraging plugins like vim-plug for plugin management and a variety of others for features like fuzzy finding, Git integration, and syntax highlighting, the author creates a streamlined coding environment. The post focuses on specific configurations and keybindings for tasks such as file navigation, code completion, compiling, and debugging, showcasing a personalized workflow built around minimizing friction and maximizing productivity within Vim. The ultimate goal is to achieve a near-IDE experience using Vim's powerful extensibility.
Hacker News users generally praised the author's approach to Vim automation, emphasizing the balance between leveraging Vim's powerful features and avoiding over-complication. Several commenters shared their own preferred plugins and workflows, highlighting tools like fzf, vim-projectionist, and CtrlP for file navigation, and luasnip and UltiSnips for snippets. Some appreciated the author's philosophy of learning Vim gradually and organically, rather than attempting to master everything at once. A few commenters discussed the trade-offs between using a highly configured Vim setup versus a more minimalist approach, and the potential drawbacks of relying too heavily on plugins. There was also a brief discussion about the relative merits of using language servers and other external tools within Vim.
Marksmith is a new open-source, WYSIWYG Markdown editor specifically designed for Ruby on Rails applications. Inspired by GitHub's editor, it offers a clean and intuitive interface for writing and previewing Markdown content. Marksmith boasts features like live previews, syntax highlighting, and seamless integration with ActionText, making it easy to incorporate rich text editing into Rails projects. It aims to provide a superior editing experience compared to existing solutions by focusing on performance, ease of use, and a familiar, GitHub-like interface.
Hacker News users discussed Marksmith's features, licensing, and alternatives. Some praised its clean interface and GitHub-flavored Markdown support, seeing it as a good option for simple Rails apps. Others questioned the need for another editor, pointing to existing solutions like ActionText and Trix. The MIT license was generally welcomed. Several commenters debated the merits of client-side vs. server-side rendering for Markdown previews, with performance and security being key concerns. Finally, some users expressed interest in a JavaScript version independent of Rails. The discussion overall was positive, but with some pragmatic skepticism about its niche.
Even in a world of advanced IDEs, Sublime Text holds its own due to its speed, simplicity, and extensibility. The author appreciates its snappy performance, distraction-free interface, and powerful customization options via plugins and keybindings. While acknowledging the benefits of more feature-rich alternatives like VS Code, they find Sublime Text's minimalist approach ideal for focused coding and quick edits, particularly for tasks involving multiple languages or remote servers where a lightweight editor shines. Its enduring popularity speaks to its effectiveness as a powerful yet uncluttered coding tool.
Hacker News users generally agreed with the author's preference for Sublime Text, praising its speed, simplicity, and extensibility. Several commenters highlighted its performance advantages, particularly for large files and complex projects, where other editors can become sluggish. The robust plugin ecosystem and keyboard-centric workflow were also frequently mentioned as key strengths. Some suggested that Sublime Text's appeal lies in its resistance to feature bloat and focus on core editing functionality, contrasting it with more resource-intensive IDEs. A few dissenting voices mentioned the lack of integrated debugging and other advanced features, but the overall sentiment was strongly positive towards Sublime Text's enduring relevance. The discussion also touched on the benefits of a perpetual license model and the value of mastering a single, powerful tool.
Helix editor's pull request #11285 integrates a file explorer directly into the editor. This new feature allows users to browse and open files within their project workspace without needing external tools. The implementation provides basic file management operations like creating, deleting, renaming, and opening files and directories, enhancing the editor's self-sufficiency and streamlining the editing workflow. It leverages the existing tree-sitter infrastructure for efficient parsing and rendering of the file tree.
Hacker News users generally expressed excitement about the merged file explorer in Helix, praising its speed and integration with the editor's core functionalities. Several commenters appreciated the thoughtful design, particularly the ability to open multiple files simultaneously and the minimalist, non-distracting implementation. Some users compared it favorably to other editors' file explorers, noting its superior performance and smoother workflow. A few commenters discussed potential improvements, like the ability to rename files directly within the explorer and support for fuzzy finding. Overall, the reception was positive, with many looking forward to using the new feature.
After over a decade using Vim/Neovim, the author experimented with Zed, a new electron-based editor. While appreciating Zed's native performance, smooth scrolling, and collaborative features, the author found the Vim mode lacking compared to their highly customized Neovim setup. Specifically, plugins and keybindings didn't translate seamlessly, hindering their workflow. Although impressed by Zed's potential, particularly its speed and built-in collaboration, the author ultimately returned to Neovim, finding its flexibility and familiarity more valuable than Zed's current advantages. They remain optimistic about Zed's future and plan to revisit it as it matures.
HN commenters generally expressed interest in Zed, particularly its performance and native UI. Some compared it favorably to VS Code, highlighting Zed's speed and responsiveness. Several users questioned the viability of Zed's closed-source model and subscription pricing, especially given the strong presence of free and open-source alternatives. A few commenters noted the post author's seeming bias toward Zed, given their employment history. Others discussed specific features, such as collaborative editing, and the desire for Vim keybindings. The potential for vendor lock-in was also raised as a concern.
NotepadJS is a cross-platform, open-source text editor inspired by the simplicity of Windows Notepad. Built with web technologies (HTML, CSS, and JavaScript) using Electron, it aims to provide a lightweight and distraction-free writing experience across different operating systems. It supports essential features like basic text editing, find and replace, customizable themes, and automatic file saving, while intentionally avoiding more complex functionalities found in full-fledged code editors. The project focuses on maintaining a clean and minimal interface, prioritizing speed and ease of use for quick note-taking and text manipulation.
Hacker News users generally praised NotepadJS for its simplicity and cross-platform compatibility, viewing it as a welcome alternative to Electron-based text editors. Some appreciated its small size and speed, while others suggested potential improvements like syntax highlighting, tabbed interfaces, and mobile support. A few commenters pointed out existing similar projects like Lite XL and discussed the merits of using Tauri versus Electron for such applications. The developer's choice of using vanilla JavaScript also garnered positive feedback. Some expressed nostalgia for simpler text editors and lauded the project for fulfilling a specific need for a lightweight, no-frills notepad application.
Summary of Comments ( 13 )
https://news.ycombinator.com/item?id=43283814
Hacker News users discuss the cleverness and potential uses of
bcvi, particularly for embedded systems debugging. Some express admiration for the ingenuity of using the back channel for editing, highlighting its usefulness when other methods are unavailable. Others question the practicality due to potential slowness and limitations, suggesting alternatives likeed. A few commenters reminisce about using similar techniques in the past, emphasizing the historical context of this approach within resource-constrained environments. Some discuss potential security implications, pointing out that the back channel could be vulnerable to manipulation. Overall, the comments appreciate the technical ingenuity while acknowledging the niche appeal ofbcvi.The Hacker News post "Bcvi – run vi over a 'back-channel' (2010)" has several comments discussing the utility and implications of the
bcvitool.One commenter highlights the potential security risks of using such a tool, especially if the back channel isn't adequately secured. They express concern about inadvertently exposing sensitive information or granting unintended access to a system. This concern is echoed by another user who points out the inherent danger of trusting arbitrary escape sequences. They suggest that, while interesting, the approach presents a significant attack surface.
Another commenter questions the practical applications of
bcvi, wondering in what scenarios it would be genuinely useful. They acknowledge the cleverness of the concept but struggle to envision situations where it would be preferable to established methods of remote file editing. This skepticism is shared by a separate commenter who points out the existing availability of tools likesshfswhich offer a more robust and secure way to edit remote files.Several commenters delve into the technical aspects of
bcvi, discussing its implementation and potential limitations. One points out the challenge of handling interactive commands and the need for careful consideration of terminal emulation. Another user mentions the project's age and expresses curiosity about its current status and whether it's still actively maintained.A commenter recalls using a similar technique in the past, involving
screenandvi, for editing files over a serial console. They describe the setup and the advantages it offered in their specific use case. This anecdote provides a practical example of a scenario where a back-channel editing approach could be beneficial.One commenter humorously suggests using netcat as a more straightforward alternative for editing remote files over a simple connection. While likely intended as a tongue-in-cheek suggestion, it highlights the potential simplicity of achieving similar functionality with readily available tools.
Finally, a few comments express general appreciation for the cleverness and ingenuity of the
bcviconcept, even if its practicality is debated. They acknowledge the value of exploring unconventional approaches to problem-solving.