Optimal ledger design for SUPER Goal: maximum autonomy, minimum ongoing cost, full alignment with the eight governing laws (especially cheap exit, transparency, forkability, and no power concentration).

Core requirements the ledger must satisfy

  • Records contribution history, real-currency settlements, temporary decision rights, and surplus shares.

  • Data is exportable at any time in open formats so any member or sub-group can leave and take a complete, usable copy.

  • Transparency is the default (most data visible to members).

  • No single operator or company can permanently control, alter, or withhold the history.

  • Operating cost stays as close to zero as practical while remaining reliable.

  • Human failure modes (capture, opacity, lock-in) are designed against from the start.

Recommended architecture (phased, lowest-cost first)

Phase 1 – Bootstrap / small scale (0–150 active participants) Use the cheapest, most autonomous, most forkable approach possible:

  • Primary store: plain-text open formats (CSV + Markdown or simple JSON files) kept in a public or member-visible Git repository (GitHub, Codeberg, self-hosted Gitea, or even a plain rsync/SSH folder).

  • No custom login system required. Members interact via ordinary Git accounts, pull requests, or shared editing rights. For privacy-sensitive fields (exact personal bank details, etc.) use a second, encrypted private repo or simple password-protected files that only the relevant parties can open.

  • Valuation & ranking: lightweight open-source scripts (Python or similar) that anyone can run locally. These scripts pull public market exchange rates and recompute contribution scores, time-decay, and currency conversions. Anyone can verify the numbers.

  • Hosting cost: effectively $0–$5/month (free Git hosting or a $3–5 VPS).

  • Autonomy: any member can clone the entire history in seconds and continue independently. Forking is trivial.

  • Why this wins early: zero proprietary software lock-in, near-zero cost, maximum transparency, and the ledger itself becomes a living demonstration of the “exit is sacred” rule.

Phase 2 – Growing but still lean (150–1,000 participants) Add the minimum tooling that reduces friction without sacrificing autonomy:

  • Keep the Git/plain-text core as the source of truth.

  • Optional lightweight web front-end (static site or very simple open-source app) that reads the same files and presents a readable dashboard. Host it on the cheapest reliable option (Cloudflare Pages, Netlify, or a $5 VPS).

  • Digital logins only where strictly necessary (e.g., to submit a new contribution claim or to view personal settlement details). Use ordinary email + password or existing identity providers; do not build a heavy custom identity system.

  • Automated market-rate feeds and simple scoring scripts remain open and runnable by anyone.

  • Cost target: under $20–40/month total.

  • Still fully exportable and forkable overnight.

Phase 3 – Larger scale (only if needed) If volume demands it, move to a hybrid:

  • Primary ledger remains append-only, cryptographically signed records (simple hash-chained logs or a lightweight open-source distributed store).

  • Still no proprietary database. Prefer tools that export cleanly to CSV/JSON/Git.

  • Multiple independent mirrors maintained by different members or sub-groups so no single machine or operator is a point of failure.

  • Cost remains low because the design never requires expensive always-on infrastructure or paid SaaS platforms.

Direct answers to your questions

  • Off-prem computer? Prefer not a single off-prem (cloud) machine as the sole source of truth. A cheap VPS can host mirrors or the web front-end, but the authoritative history must live in a form that many people can copy. A single rented server creates dependency and a potential capture point.

  • Software with digital login for all participants? Only the minimum necessary. Full always-on login portals add cost, complexity, and a new power surface (whoever controls accounts can throttle or ban). In Phase 1, avoid them entirely. In later phases, logins are limited to write-actions or private data; the bulk of the ledger stays publicly readable and downloadable without an account.

Operating rules that keep the ledger aligned with SUPER

  • Every material change (new contribution claim, currency settlement, authority grant/sunset) is recorded with a timestamp and the real-currency evidence that supports it.

  • Anyone can audit the full history.

  • Data export is a one-click or one-command operation.

  • The software and scripts that interpret the ledger are themselves open and versioned in the same repository.

  • If the people currently maintaining the technical infrastructure start to calcify or extract rents, any competent subgroup can stand up a mirror and invite others to switch—exactly as the governing laws require.

Summary recommendation

Start with a Git-based plain-text ledger + open scripts. It is the most autonomous, the least expensive, the hardest to capture, and the most consistent with “exit is sacred.” Add the lightest possible web interface and selective logins only when genuine friction appears. Never let the technical system become more important or more permanent than the voluntary association it serves.

This approach keeps the ledger a tool rather than a new center of power