SCANNING● LIVE DATAUTC 2026-06-29 00:00:00
VENDORS 23RECEIPTS 32CRITICAL 57D 0 NEWv0.9.4-rc1
gotnerfedgotnerfed
GitHub Copilot Nerf Index30·30-day re-nerf forecast15%·critical receipts0
§ 02OPEN-SOURCE REPLACEMENTS6

Self-hosted, free, or freemium tools that cover the same workflow. Every entry is real software with a public repo and an active community.

OpenCodeFREE / OSS120k★MIT

Open-source Claude Code / Cursor replacement that lives in the terminal. Pick when you want zero vendor lock-in and any LLM backend.

  • Terminal-native TUI coding agent (vim-like)
  • Build/Plan mode toggle, session management
  • Provider-agnostic: Claude/OpenAI/Google/local
curl -fsSL https://opencode.ai/install | bash (or npm i -g opencode-ai@latest)
! caveat: BYO API key (or local model). No GUI editor - it is a terminal TUI.
aiderFREE / OSS28k★Apache-2.0

Best Cursor replacement for terminal-comfortable devs who want auditable git history of every edit.

  • CLI-first, terminal-native
  • Git-aware: auto-commits, branches, diffs
  • Works with any LLM provider (BYO API key)
pip install aider-chat
! caveat: BYO API key (Anthropic/OpenAI/local). No GUI.
ClineFREE / OSS24k★Apache-2.0

Direct Cursor/Claude-Code clone inside VSCode. Best for devs already living in VSCode.

  • VSCode extension, native UX
  • Plan/Act mode toggle
  • Built-in MCP support
VSCode marketplace: 'Cline'
! caveat: BYO API key. Permission prompts can feel noisy.
TabbyFREE / OSS24k★Apache-2.0

When you need 100% on-prem code completion. No data leaves your machine.

  • Self-hosted, runs on your GPU
  • OpenAPI-compatible
  • Team collab features
Docker image or Homebrew
! caveat: Requires GPU for decent latency. Setup is non-trivial.
Continue.devFREE / OSS21k★Apache-2.0

Best when you want local LLMs (via Ollama) and care about privacy. Strong autocomplete.

  • VSCode + JetBrains support
  • Local-model friendly (Ollama integration)
  • Custom slash commands
VSCode/JetBrains marketplace: 'Continue'
! caveat: Tab autocomplete needs a fast local model or hosted API.
Roo CodeFREE / OSS11k★Apache-2.0

Cline's multi-personality cousin. Pick when you want explicit Architect-vs-Coder separation.

  • Cline fork with extra modes (Architect, Ask, Debug)
  • Multi-mode workflows
  • Custom mode authoring
VSCode marketplace: 'Roo Code'
! caveat: Same BYO-API-key model as Cline.
§ 03TRACKED PAID COMPETITORS3

Other paid tools we track in the same category, ranked by current Nerf Index. Lowest = least likely to nerf you next.

#1Windsurf0 · no receipts 30 vs GitHub Copilot

No receipts yet.

critical · 0last 90d · 030d re-nerf · 5%
#2Cursor13 · clean 17 vs GitHub Copilot

1 critical receipt logged.

critical · 1last 90d · 030d re-nerf · 43%
#3Claude Code27 · on watch 3 vs GitHub Copilot

1 critical receipt logged.

critical · 1last 90d · 130d re-nerf · 17%
★ PERSONAL Step-by-step migration playbook

GitHub Copilot OpenCode

8 steps· ~14 min· low risk· built for macOS · Linux · Windows · VSCode + JetBrains + Vim + Emacs + 30+ IDEs
Personal$9/mo

Unlock the full OpenCode migration

Step one’s on us. The rest — config port, smoke test, the buried cancel path with a prefilled refund email, and the rollback — open the second you join.

  • All 8 steps, copy-paste ready
  • Every migration playbook — including ones we haven’t written yet
  • Refund email that’s clawed back $80+
  • gotnerfed ask — grounded help through every step
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