Free software for those who value small, clear and verifiable things.

A DEC Alpha emulator that boots OpenVMS, a proxy server for small Linux devices, a MODBUS gateway and an ecosystem of utilities around them: networking, backups, editors, libraries. The source is open, the documentation is in Russian and English.

Flagships

flagship Emulation

AlphaEmu

A DEC AlphaServer ES40 emulator: OpenVMS V8.3 Alpha boots unmodified.

Active developmentLinux x86-64 (with JIT); aarch64 (interpreter)licence to be announced

flagship Networking

BroProxy

A SOCKS4/5, HTTP and HTTPS (CONNECT) proxy server; one static file for x86, ARM and MIPS.

Active development, releases by tagLinux: x86_64, armhf, arm64, mips, mipsel, mips64el; Raspberry Pi, OpenWrtApache License 2.0

Ecosystem

Networking around BroProxy

BroAgent

The connection-back agent of BroProxy: a machine behind NAT calls the proxy itself.

Active development (in one repository with BroProxy)Linux: the same processors as BroProxyApache License 2.0

OpenVMS around AlphaEmu

MSCP-Hub

An MSCP disk server for OpenVMS nodes, running on Linux.

Active developmentLinux, kernel 5.10+ (io_uring); Raspberry Pi, NaPi-CGNU GPL v3

More Source (GitHub)

OpenVMS around AlphaEmu

yaVTERM

A small encrypted terminal tunnel for OpenVMS, a replacement of SSH.

Working, evolvingClient - Linux; server - OpenVMS Alpha (and I64)Apache License 2.0

Networking

yaVNA

A full-mesh user-space VPN: Linux, Windows, Android; the traffic looks like QUIC/HTTPS.

A working network of 14 nodes since October 2026Linux x86_64/aarch64, Android arm64 (API 29+), Windows 10+ x64 (client node)Apache License 2.0

More Source (Codeberg)

OpenVMS

yaDX

DX - a full-screen file manager for OpenVMS, the 2026 edition.

MaintainedOpenVMS Alpha and I64 (checked: V8.3 Alpha, V8.4 I64)GNU GPL v2 or later

More Source and Releases (Codeberg)

OpenVMS

yaDCX

Self-extracting kits for OpenVMS: one .BCK file becomes one .EXE program.

MaintainedOpenVMS Alpha and I64Apache License 2.0

More Source (Codeberg)

OpenVMS

vTUN

A tun-style network device for OpenVMS Alpha.

WorkingOpenVMS AlphaApache License 2.0

Linux utilities

vBACKUP

An OpenVMS BACKUP style saveset utility for Linux: save, restore, verify.

Active developmentLinux; Windows images (MinGW-w64)Apache License 2.0

More Source (GitHub)

Libraries

StarLet

A small C library of OpenVMS-style building blocks: the common base of our packages.

Active developmentLinux, Windows (MinGW); x86-64 and ARMv8Apache License 2.0

More Source (GitHub, utility_routines)

Linux utilities

HELP (vHELP)

An OpenVMS-style help subsystem: a Markdown librarian and a browser.

Active developmentLinuxApache License 2.0

More Source (GitHub)

Linux utilities

BATCH

A batch job subsystem for shell scripts - a counterpart of OpenVMS SUBMIT and queues.

Active developmentLinux (systemd or SysV/OpenRC)Apache License 2.0

More Source (GitHub)

Linux utilities

SEARCH

OpenVMS-style SEARCH: shows the records of files containing the given strings.

MaintainedLinuxApache License 2.0

More Source (Codeberg)

Linux utilities

skshow

A nano utility: the TCP/UDP sockets of the system with byte and packet counters.

MaintainedLinuxApache License 2.0

Linux utilities

yaNetCheck

Checking a network path with a stream of UDP datagrams: losses, duplicates, reordering.

MaintainedLinux (glibc), x86_64 and aarch64Apache License 2.0

Linux utilities

yaTPU

A light text editor in the spirit of DEC TPU/EVE: plain C, termios, no ncurses.

MaintainedLinux (VT100/xterm terminal)Apache License 2.0

Networking

yaDNSPxy

A caching DNS forwarder for an embedded router: upstream over DoT, DoH, DoQ or plain UDP/TCP.

In developmentOpenWrt, NapiLinux (Linux)Apache License 2.0

Industrial

mbus-gw-t2r

A MODBUS TCP to RTU gateway for RS-485 and RS-232 lines: several devices per line, several TCP ports per line, a transparent RAW mode.

Released, evolvingLinux: amd64, arm64, mipsel, mips64el (.deb); OpenWrt 24.10 and 25.12 (.ipk, .apk); NaPi boards (RK3568J, RK3308)Apache License 2.0

More Source and Releases (GitHub, NaPi Lab)