feat!: Rewrite for the new backend (#79)

A new major version!

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: icco

.github/workflows/ci.yml

@@ -39,13 +39,39 @@ jobs:
         run: go install honnef.co/go/tools/cmd/staticcheck@latest
       - name: Run staticcheck
         run: staticcheck -go ${{ matrix.go-version }} ./...
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: "1.25"
+      - name: Run go fmt
+        run: go fmt ./...
+      - name: Commit formatting changes
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git add -A
+          git diff --staged --quiet || git commit -m "style: apply go fmt"
+          git push || true
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v9
+        with:
+          version: v2.8.0
   build:
     name: Build
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
       - name: Set up Go
         uses: actions/setup-go@v6
+        with:
+          go-version: "1.25"
       - name: Cache Go modules
         uses: actions/cache@v5
         with:

.github/workflows/lint.yml

@@ -55,6 +55,6 @@ jobs:
       - name: golangci-lint
         uses: reviewdog/action-golangci-lint@v2
         with:
-          golangci_lint_version: v1.64.8
+          golangci_lint_version: v2.8.0
           level: warning
           golangci_lint_flags: --timeout=15m

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
-          go-version: stable
+          go-version: "1.25"
       - name: Determine next version
         id: versioning
         if: github.event_name != 'push' || !startsWith(github.ref, 'refs/tags/')

README.md

@@ -4,7 +4,7 @@
 [![Go Reference](https://pkg.go.dev/badge/github.com/icco/etu.svg)](https://pkg.go.dev/github.com/icco/etu)
 
 
-Etu is a simple journaling tool that uses Notion as a database.
+Etu is a simple journaling tool that talks to the [etu-backend](https://github.com/icco/etu-backend) API over gRPC (default: `grpc.etu.natwelch.com`).
 
 It should be noted the main goal of Etu is to write interstitial journals. See https://betterhumans.pub/replace-your-to-do-list-with-interstitial-journaling-to-increase-productivity-4e43109d15ef for more on this topic.
 
@@ -19,23 +19,29 @@ brew install etu
 
 ### Local Build
 
-Build Dependencies:
+**Dependencies:** Go 1.25 or later, [Task](https://taskfile.dev/) (optional).
 
-- Go 1.25 or later
-- https://taskfile.dev/
+1. `git clone` the repo
+2. `task build` (or `go build -o etu .`)
+3. Run `./etu`
 
-Build
+## Usage
 
-1. git clone code
-1. `task build`
-1. `./etu`
+Before running you need an API key for the etu-backend. You can:
 
-## Usage
+1. Put your API key in `~/.config/etu/config.json` with keys `api_key` and optionally `grpc_target` (default: `grpc.etu.natwelch.com:443`), or
+2. Set the `ETU_API_KEY` environment variable (and optionally `ETU_GRPC_TARGET`).
+
+Example config file:
 
-Before running you need to set `NOTION_KEY`. Optionally, you can set `OPENAI_API_KEY` to enable automatic tag generation.
+```json
+{
+  "api_key": "your-64-char-hex-api-key",
+  "grpc_target": "grpc.etu.natwelch.com:443"
+}
+```
 
-- To get a Notion key go to https://www.notion.so/profile/integrations
-- To get an OpenAI key (optional) go to https://platform.openai.com/api-keys
+Config and the "time since last post" cache live under `~/.config/etu/`. Tag generation and storage are handled by the backend; see [etu-backend](https://github.com/icco/etu-backend) for setup.
 
 ```
 $ etu
@@ -46,7 +52,7 @@ Usage:
   etu [command]
 
 Available Commands:
-  create      Create a new journal entry. If no date provided, current time will be used.
+  create      Create a new journal entry (attach images via drag & drop in TUI or -i/--image).
   delete      Delete a journal entry.
   help        Help about any command
   last        Output a string of time since last post.
@@ -63,7 +69,7 @@ Use "etu [command] --help" for more information about a command.
 
 ## Inspiration
 
-Etu is [the personifcation of time](https://en.wikipedia.org/wiki/Time_and_fate_deities) according to the [Lakota](https://en.wikipedia.org/wiki/Lakota_people).
+Etu is [the personification of time](https://en.wikipedia.org/wiki/Time_and_fate_deities) according to the [Lakota](https://en.wikipedia.org/wiki/Lakota_people).
 
 Etu is inspired heavily by the work of @neauoire at [wiki.xxiivv.com](https://wiki.xxiivv.com/#about), [Time Travelers](https://github.com/merveilles/Time-Travelers), and the screenshots in the [inspiration](https://github.com/icco/etu/tree/main/inspiration) folder.
 
@@ -75,8 +81,4 @@ Other projects that inspired me:
 
 ## History
 
-I've rewritten this aproximately seven times. Originally I made this to be a location based blogging app. Then it turned into a time tracking app. Then into a wiki. Then another time tracking app. Then a journaling tool. First with Charm as a DB, then with SQLite, then with Notion.
-
-## Future
-
-I've been thinking about making the AI and the backend pluggable. If you have ideas on how to do that, open a ticket and ping @icco.
+I've rewritten this approximately seven times. Originally a location-based blogging app, then time tracking, wiki, journaling. Backends: Charm, SQLite, Notion, and now the [etu-backend](https://github.com/icco/etu-backend) gRPC API.