4.2 Project Management

Efficiently running your dApp from idea → launch → maintenance is essential. GRX Chain provides EVM-compatible building blocks and clear patterns so teams can manage code, keys, releases, and governance with confidence.

What this section covers

• Secure smart-contract lifecycle (deploy, verify, upgrade)

• Treasury & admin safety (multi-sig, timelocks, roles)

• Monitoring & cost control (gas, volume, health)

• Funding transparency & auditability

• Integration with common dev workflows

Recommended lifecycle (at a glance)

1. Plan & threat model → define roles, privileges, and upgrade policy

2. Build → write contracts/tests; pin compiler; static analysis & fuzzing

3. Stage on testnet → rehearsed deploys, seeded test data, attack sims

4. Audit & remediate → external review; fix & re-test; publish report

5. Mainnet release → deploy, verify on GRXscan, publish changelog

6. Guardrails on → multi-sig, timelock, least-privilege roles, pause (if disclosed)

7. Observe & iterate → dashboards, alerts, periodic key/role reviews, governed upgrades

Smart-contract lifecycle management

• Version control & determinism Pin Solidity compiler (exact version), lock dependencies, reproducible builds; archive ABIs/bytecode/source maps.

• Upgrade patterns (EVM) Prefer Transparent or UUPS proxies. Document upgrade authority and runbook. Wrap upgrades with a timelock for review.

• Verification & provenance Verify every contract on GRXscan (exact compiler + constructor args). Tag releases and link addresses in notes.

• Release hygiene Use a limited-power canary before full cut-over. Maintain a deterministic migration script (Hardhat).

Secure multi-signature & admin controls

• Multi-sig for critical actions Treasury moves, parameter changes, upgrades → M-of-N approvals; publish signer addresses; use hardware wallets.

• Timelocks & role scoping Route sensitive calls via 24–72h timelock. Define minimal roles (PAUSER, PARAM_SETTER, UPGRADER) instead of a single super-admin.

• Emergency posture If a pause/kill switch exists, disclose it clearly, time-bound it, and control via multi-sig.

Monitoring, telemetry & cost control

• On-chain metrics Tx success rate, revert reasons, events volume, unique wallets, TVL/LP depth (if DeFi), gas per function. Expose a public dashboard.

• Gas & performance Log average gasUsed by function; set CI budgets; use Multicall; avoid unbounded loops; cache immutable config.

• Alerts Spike in failed txs, unusual admin calls, role changes, liquidity outflows, oracle staleness, missed keeper jobs.

Funding transparency & auditability

• Route grants/ops payments via multi-sig; label addresses on GRXscan.

• Publish a simple treasury ledger mapping transfers to proposals/issues.

• Reference governance IDs in payment memos; update status in forum/RFC threads.

Integrating with developer workflows

• Tooling: Hardhat/Truffle + ethers.js/web3.js

• Environments:

  • Mainnet RPC: https://rpc.grxchain.io (Chain ID 1110)

  • Testnet RPC: https://testnet.grxchain.io (Chain ID 2507)

  • Explorers: https://grxscan.io, https://testnet.grxscan.io

• Hardhat sample

export default {
  solidity: "0.8.24",
  networks: {
    grx: { url: "https://rpc.grxchain.io", chainId: 1110, accounts: [process.env.PRIVATE_KEY].filter(Boolean) },
    grxTestnet: { url: "https://testnet.grxchain.io", chainId: 2507, accounts: [process.env.PRIVATE_KEY].filter(Boolean) }
  }
}

Checklists

Pre-deployment

• Threat model complete; roles mapped; upgrade policy defined

• Tests (unit/integration/fuzz) meet coverage target

• Static analysis clean; gas snapshots recorded

• External audit complete; remediations merged

• Dry-run deploy on testnet successful

• Addresses ready: multi-sig, timelock, proxy admin

Launch day

• Contracts deployed & verified on GRXscan

• Admin roles transferred to multi-sig/timelock

• Public post with addresses, audits, changelog, risks

• Dashboards/alerts live; emergency runbook pinned

Post-launch upkeep

• Monthly key & signer health check

• Quarterly dependency/permission review

• Postmortems (if any) published to docs/forum

• Office-hours/AMA recap posted for community

Governance hooks (recommended)

• Flow: Idea → RFC (forum) → On-chain vote → Timelocked execution

• Each proposal includes: Motivation, Spec, Security/Back-compat, Rollout, Monitoring & Revert Plan

• Governance portal: proposal.grxchain.io • Staking portal: staking.grxchain.io

Quick links

• Developer Resources & Network Details

• Integration & Interoperability

• Security & Privacy

• Governance portal: proposal.grxchain.io

• Staking portal: staking.grxchain.io

• Support: [email protected]

---

Release & Environments

• Branches: main (prod), release/* (staging), dev/* (feature)

• Promotion flow: dev → testnet → release → mainnet

• Quality gates: tests ≥ 95% pass; static analysis clean; gas diff within budget; audit items resolved

• Freeze windows: 24–72h before major releases; emergencies via timelocked multi-sig only

Change Management (short)

• Types: standard (low risk), normal (reviewed), emergency (security/hotfix)

• Artifacts: PR + CHANGELOG.md + UPGRADE.md + Runbook link

• Approvals: ≥2 maintainers for contract changes; ≥M-of-N multi-sig for parameter changes

• Post-deploy: verify on GRXscan, publish addresses, tag release, announce risks

Keys, Secrets & Signers

• Storage: hardware wallets (Ledger/Trezor/HSM); no hot keys for treasuries

• Rotations: quarterly or on incident; documented ceremony

• Multi-sig defaults: 2/3 ops; 3/5 treasury; 4/7 upgrades (adjust as needed)

• Timelocks: 24h params, 48–72h upgrades; emergency path documented & disclosed

Rollback & Migration

• Proxy upgrades: keep prior impl address; run health checks before switching

• State safety: snapshot critical mappings before upgrades

• Abort criteria: error rate >2%, invariant breaks, oracle failure, liquidity drain

• Revert plan: switch proxy back, pause affected modules (if disclosed), postmortem within 7 days

Oracles & External Dependencies

• Checklist: redundancy, staleness bounds, circuit breakers, fallbacks

• Alerts: price deviation, heartbeat miss, signature mismatch

• Docs: list providers, SLA hints, failure modes

Licenses & Compliance

• SBOM: generate each release; pin compiler & deps

• License policy: prefer permissive OSS; record exceptions

• Third-party reviews: annual review of explorer/RPC/bridge providers

Docs & Runbooks (add these to your repo)

• SECURITY.md: report path, scope, safe-harbor

• RELEASE.md: checklist + promotion steps

• RUNBOOK.md: deploy, rollback, pause, resume

• UPGRADE.md: proxy pattern, roles, timelock, tests

• RISKREGISTER.md: top risks + owners + mitigations

RACI (who does what)

• Core team: roadmap, releases, incident comms

• Maintainers: reviews, merges, versioning

• Security lead: audits, bug bounty triage, IRP

• Ops: nodes, monitoring, backups

• Comms: changelog, user notices, deprecation comms

Monitoring & SLOs

• Golden signals: tx success rate; median/p95 gas by function; block-time variance; mempool backlog

• Business KPIs: unique wallets, DAU, swaps/volume, TVL, retention

• SLO (example): ≥99.5% successful txs; <2s median inclusion under normal load

• Alerting: page on SEV-1/2 only; make thresholds configurable

Templates

CHANGELOG.md

## YYYY-MM-DD
- Feature: ...
- Fix: ...
- Contract: <Address> (verified) — Compiler vX.Y.Z — Migration #123
- Risks & Rollback: ...

UPGRADE Checklist

• Audit items resolved

• Testnet rehearsal & snapshot

• Timelock queued (hash/link)

• Multi-sig approvals complete

• Post-switch health checks pass

• GRXscan verification + release tag

• Public note with addresses/risks

.env.example

PRIVATE_KEY=
GRX_RPC=https://rpc.grxchain.io
GRXSCAN_API_KEY=

Communication & Deprecation

• Notice policy: 14 days for breaking RPC/contract changes (unless security)

• Channels: Docs Changelog, Official Channels, governance proposal (if required)

• EOL: archive old contracts in docs; mark repos read-only; link successors

Accessibility & Localisation (Dev UX)

• Docs: “Last updated” stamps, readable typography, high-contrast code blocks, keyboard navigation

• i18n: community translations welcome; English is the controlling language

Optional Enhancements

• Meta-tx/gas sponsorship for wallet-friendly UX

• Indexing backups for subgraphs/indexers

• Telemetry: opt-in, anonymised metrics with a clear toggle

Safety note: Only trust addresses and endpoints listed in the Knowledge Base and visible on GRXscan. For bridging, use grovex.io (current official).