Voltius Blog
Release notes, SFTP workflows, sync architecture, and engineering decisions behind the open-source SSH, SFTP, and serial client built with Rust and Tauri.
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Product context and practical notes from the Voltius beta cycle.
Proxmox LXCs and Docker containers in the side panel, a shell inside any of them in one click, a router on a serial cable, and OpenWrt over SSH even without base64. All next to your SSH hosts, all over plain SSH.
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19 posts
Voltius runs every SSH session inside tmux or screen on the host by default. Kill the app, lose the Wi-Fi or close the lid: the build keeps running, and the tab comes back to it. On tmux 3.2+, it even scrolls and searches like a plain terminal.
Voltius 0.49.0 makes SFTP uploads, downloads and remote-to-remote copies wait for a lost connection and pick up where they stopped. A cut-off copy never replaces the real file, and a resumed file is checked end to end before it lands.
A shared terminal in Voltius is read-only for guests by default and hands control over one request at a time. Here's how inviting, watching, requesting and revoking work, and why the server can't read any of them.
The command palette, broadcast input, the process manager and one-click themes: the parts of Voltius that don't need a launch post, and that you end up using every day.
Voltius for Android isn't a companion app — it's the same Tauri app, the same terminal, SFTP, Docker panels and native keychain, running on a phone. Here's what it took to get a desktop SSH client onto Android, and the touch gestures that make a terminal usable without a keyboard.
Voltius 0.19.0 ships an MCP server: 41 tools that let an AI agent on your machine use the hosts, keys and plugins already in your vault — without a credential ever leaving it.
Voltius now runs in English, French, and Russian. The tricky part of localizing a terminal isn't the translating — it's knowing what NOT to translate, keeping ~2,600 keys in sync, and the moment Russian grammar forced a change to the React code. Here's the i18n architecture and the bugs it surfaced.
Snippets grew up. A snippet is now a sequence of steps — run a script, move a file, call another snippet — that fans out across every host you select, prompts for variables once, and reports back with a single toast. Here's the runner underneath, and the recursion guard that stops a snippet calling itself into oblivion.
The SFTP browser now behaves like the file manager you already know: copy on one server, paste on another; drag files onto a folder or a breadcrumb; type a few letters to jump to a file; Alt-arrow through your history. Here's how it works — including why the drag had to be rebuilt from scratch on Windows.
A reworked port-forwarding panel, auto-forwards shared across every terminal on a host, and the one-line bug that quietly killed your tunnels every time your laptop went to sleep.
Voltius now has a full code editor built in — open a file over SFTP, edit it with real syntax highlighting, and diff local↔remote or host↔host before you save. Here's how it works and why it's a CodeMirror 6 MergeView underneath.
Voltius speaks FTP and FTPS now — a protocol older than the internet as most people know it. Adding a 1971 protocol to a modern SSH client sounds absurd until you meet the NAS boxes and appliances that still only speak it. Here's how one trait made FTP nearly free, and how FTPS is done safely.
How Voltius keeps SSH sessions alive through network drops, app restarts, and device switches — using tmux on the host, an encrypted per-device manifest, and no ownership protocol at all.
Voltius beta is usable from the 0.1.50 release with SSH, SFTP, serial sessions, local-first encryption, plugin support, and no account required.
How Voltius helps keep SSH hosts, identities, snippets, and connection data portable with import support and optional encrypted JSON export.
How Voltius handles local encrypted vaults, free encrypted Gist sync, and paid cloud sync without making an account mandatory.
Voltius SFTP is designed for local transfers, remote browsing, and host-to-host workflows without leaving the SSH client.
A technical look at how Voltius batches directory, multi-file, and host-to-host SFTP transfers into one compressed tar stream over SSH, with no temporary archive on either end.