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User report: pressing Enter on 'System prompt (empty = use built-in)' silently returned to the menu — no alias created, and step labels read [1/4] [2/4] in a 5-step flow. Detective (pre-existing, not a 2026-09-06 regression): menu_ask_value's documented contract is 'rc 1 = cancel, or empty answer with no default'; the step-4 call passed an empty default so the advertised empty answer hit rc 1 and '|| return 0' aborted the flow. Same latent trap at the alias-name step (empty-name warn/re-prompt was dead code). 11 other call sites are correct (6 external rely on empty=cancel, 4 pass defaults) — no global semantic change allowed. Architect: opt-in --allow-empty flag on menu_ask_value (backward compatible; empty+no-default -> rc 0 + empty value; genuine cancel/EOF stays rc 1; default still wins). Builder: implemented in lib/menu-lib.sh + bin/pos-ai-alias (steps 1-2 relabeled /5, flag at the two approved sites); 7-case smoke matrix PASS. Tests: tests/t-menu-allow-empty.sh (30 checks) — semantics matrix against the real menu_ask_value via non-TTY stdin, reader-contract probes (empty-Enter rc 0 vs EOF rc 1), static guards on step labeling, the exactly-2 flag call sites, edit-flow untouched, and a scope fence over all pos-* tools. Pty E2E proven feasible (script -qec, 3 scenarios) and documented in the Tester report; the E2E file itself remains a follow-up. Verified: make gen idempotent; make check OK; make lint 0 FAIL, 0 WARN; make test 17 files / 299 checks / 0 fail / 0 skip (~49s); bash -n clean.
Linux_post_install — Personal Bootstrap & Homelab Toolkit
One command turns a bare Debian/Ubuntu install into a fully productive machine.
What is this
After reinstalling Linux you usually need to install packages, set up SSH, configure a firewall, and install apps. This repo automates all of that in one go.
It is a personal toolkit — a bootstrap script, a unified pos CLI for everyday tasks, optional app installers, and self-hosted services via ScaleTail + Tailscale.
What you get:
- 25+ system packages installed automatically
- The
posCLI: AI (Gemini chat), network, Docker (compose + vbox VMs), media, system, SSH, share (USB over network + NFS), communication (Telegram), and entertainment (public-API plugins → Telegram) tools - Wi-Fi hotspot tools (
create_ap,wihotspot-gui) viapos network hotspot pos tree— browse the whole CLI: categories, commands, and subcommands- 15 optional desktop apps (VS Code, Brave, OBS, Tailscale, …) — pick what you want
- 119+ self-hosted services with Tailscale access (Jellyfin, Home Assistant, …)
- systemd services for SSH agent, boot-time automation, and a daily Telegram health digest (
pos system health) - Everything lands in
/usr/local/bin/— you can delete the repo after install
Quick Start
git clone https://gitea.skink-platy.ts.net/admin/Linux_post_install.git
cd Linux_post_install
./install.sh # core: packages + CLI + services + ScaleTail
./install.sh --feature # also install features/ scripts (asks before overwriting)
./install.sh --apps # also install optional desktop apps (interactive)
| Flag | What it does |
|---|---|
--feature |
Install features/ scripts to /usr/local/bin/, sets their flags |
--apps |
Interactive app picker after core install |
--full |
Core install + all apps (non-interactive) |
--dry-run |
Preview without executing |
--skip <phase> |
Skip a phase: preinstall, scripts, postinstall, scalepoint, apps |
--steps <spec> |
Run only specific phases, e.g. --steps 1,3 |
--no-color |
Disable colored output |
Documentation
| Topic | Where |
|---|---|
| Docs index | DOC/README.md |
pos HOW-TO guides (recipes + troubleshooting) |
DOC/HOWTO.md |
| Core scripts (installer, libs, features) — how they work + config | DOC/SCRIPTS.md |
pos CLI reference (all commands, compose config, wrappers) |
DOC/POS.md |
| Optional apps (picker + full catalog) | DOC/APPS.md |
| Systemd services & bash completion | DOC/SYSTEMD.md |
| Developer guide (add tools/apps/features) | DOC/DEV.md |
| Algorithm diagrams | DOC/algorithm.md |