Razvan Cremenescu
Open-source tools for macOS, Linux and the network.
Projects
DiskLens
Disk space analyzer for macOS 26. Scan any folder or your whole disk and see what's using space with an interactive treemap, sunburst, sortable table, search and content-based duplicate detection. Sandboxed; on the Mac App Store.
mRemoteNXT
Native macOS multi-protocol remote-connection client (SSH, RDP, Telnet, SFTP, HTTP). Imports confCons.xml from mRemoteNG byte-exact.
term-mac
Native macOS terminal with PuTTY-style copy-on-select and right-click paste, dynamic SSH tab titles, configurable cursor blink and zsh shell integration.
Photo2Mac
Native macOS image editor with a fully non-destructive workflow. Crop, rotate, tune with live histogram; the edit stack is embedded in the file's XMP metadata so re-opening restores your edits.
mem0ry4ai
Persistent, local-first memory for coding agents (Claude Code). Markdown + git as the source of truth, automatic injection at session start, FTS5 search, trust-gated capture, web UI.
Blog
Running multiple WireGuard tunnels at once on macOS
Why the official WireGuard client allows only one active tunnel on macOS, what actually breaks when you force two, and the patches that fix it: a utun device per tunnel, opt-in split DNS, and endpoint resets on network changes.
mRemoteNXT: from a daily need to a native Mac app
The connection manager I relied on under Windows has no macOS version, so I wrote one that reads exactly the same configuration file — and released it under the same licence as the original.
Synology: repairing an ext4 volume DSM called unfixable
For months DSM reported "File system errors cannot be fixed" and support recommended deleting the storage pool. The real cause was an orphan inode list broken by a power cut, and a manual e2fsck repaired it without losing a single file.
Contact
Email: razvan@cremenescu.ro
GitHub: github.com/cremenescu