fecfile

Twelve-skill bundle covering the Comparative Political Studies (CPS) manuscript lifecycle across comparative-politics subfields and methods, from comparative-fit framing through the CPS Dataverse replication deposit.

12 skills

Entity choice and incorporation across jurisdictions — sole prop vs LLC vs LTD vs S-corp vs C-corp, incorporation costs, ongoing compliance, tax election windows.

1 skill · 3 commands · 1 MCP server

Building a Cryptocurrency: designing and shipping your own chain, from the cryptographic primitives up. A cryptocurrency as a replicated state machine with Sybil-resistant leader election and a fork-choice rule, and the three reference architectures every chain is a variation on — Bitcoin's UTXO ledger with SHA-256d proof of work and probabilistic finality, Ethereum's account and world-state model with Gasper proof of stake and explicit finality, Monero's privacy-enhanced UTXOs with RandomX and mandatory privacy — with the five design decisions that follow and what each one costs. Hash functions and their five properties, SHA-256d and Keccak-256 and the length-extension attack that makes H(key + message) not a MAC, ECDSA and Schnorr and Ed25519 and ring signatures with the nonce hazard that has emptied real wallets, Merkle trees and O(log n) proofs and SPV, Merkle-Patricia tries and state proofs for light clients and bridges, BIP-39 seed phrases and BIP-32 derivation and BIP-44/49/84/86 paths and output descriptors, and practical key management. Proof of work and proof of stake, fork choice and finality and what each one actually promises. Then two builds end to end: a Bitcoin-style UTXO chain — transaction and script model, validation rules, what forking Bitcoin Core really involves — and an Ethereum-style account chain with the EVM, gas and smart contracts. Privacy features from ring signatures and stealth addresses to confidential amounts and zero-knowledge constructions; the peer-to-peer networking layer and block propagation; issuance schedules, fee markets, supply caps and incentive design; the security chapter on what actually loses money; and an ordered practical build guide. An engineering reference, not investment, legal or tax advice: distributing a token carries securities, AML/KYC and consumer-protection obligations that are a question for counsel in your jurisdiction.

8 skills

A tutored coding dojo: build database replication from scratch on top of SQLite in Ruby — leader/follower, a hand-written WAL, quorum and leader election — with a Socratic tutor that makes you type the load-bearing spine and an offline jail that keeps you honest.

1 skill · 6 commands · hooks

Shared Kubernetes controller skills for developers contributing to any Envoy control plane — reconcile loops, finalizers, controller testing, leader election, and CRD lifecycle

5 skills

Reference skill for the Vocdoni Integrator SDK (@vocdoni/api-client, @vocdoni/api-voting, @vocdoni/react-providers, @vocdoni/react-components): CSP auth flow, vote relay, ballot building, and React integration, with copy-pasteable recipes.

1 skill