netfu

A vim-friendly TUI replacement for nmtui. Full NetworkManager control — live wifi scanning, devices, connection editing, hostname, VPN activation — one tab per physical interface plus Virtual, Other, Auto and System. Talks to NetworkManager over D-Bus; no nmcli.

Build

go build ./cmd/netfu
./netfu          # against the running NetworkManager
./netfu --fake   # demo mode with seeded fixture data, no NM needed
./netfu --version

Tabs

The first tabs are the machine's physical interfaces (wifi first, then ethernet, labeled by interface name); Virtual, Other, Auto and System always close the bar. Device hotplug re-derives the tabs live.

1. Wifi device (e.g. wlan0) — the home tab: live scan list (deduped per SSID, signal-sorted), join with password modal, wrong-password retry, hidden networks, out-of-range saved section, and wifi profile management (e edit, x forget).
2. Ethernet device (e.g. enp0s31f6) — device detail plus the wired profiles usable on this NIC (unpinned or pinned to it), most recently used first; a/↵ activates the selected profile, d deactivates with confirm, e edit, x delete, n new profile pinned to this NIC.
3. Virtual — bridges, veth, tun & co with state; activate/deactivate, detail view (p2p-dev-* noise is hidden).
4. Other — saved profiles without their own tab: VPN, bridge, bond, vlan, plus orphaned wired profiles (no NIC present, or pinned to an interface no current device has); typed editor for the fields you actually change, untouched settings preserved verbatim; VPN activate/deactivate lives here (D-Bus cannot create VPN profiles).
5. Auto — the autoconnect pick order (priority desc, then most recently used, sectioned per device type) without thinking in numbers: J/K reorder, space toggles autoconnect, s writes spaced priorities back — only to profiles that actually changed.
6. System — hostname, wifi radio, NetworkManager state.

Key bindings

Key	Action
1–9, [ / ]	switch tab
j / k, g / G	move / jump to top, bottom
↵	contextual, never destructive: connect, activate, edit, confirm-deactivate
/	filter (wifi, virtual)
?	help
W	wifi radio toggle (global)
q	pop layer; quit at top level (ctrl+c always quits)
esc	pop layer / close modal / clear filter — never quits

Per tab: Wifi c join hidden, d disconnect, e edit, x forget · Ethernet a/↵ activate, d deactivate, e edit, x delete, n new · Virtual i detail, a/d · Other e/↵ edit, n new, x delete, a/d · Auto J/K reorder, space toggle, s save · System i/↵ edit field, space toggle.

Editor: j/k fields, ↵/i edit field, space cycle, s save, esc/q back.

Testing

go test ./...                                      # full suite, no NM needed
go test -tags nmintegration ./internal/backend/nm/ # read-only, against real NM

Developed and integration-tested against NetworkManager 1.56.1 with pinned gonetworkmanager v3.2.0 and bubbletea v2.0.8 (see go.mod).