docs(AGENTS): update Nebula project guidelines and knowledge base

.gitignore

@@ -1 +1,2 @@
 nebula
+.osgrep

AGENTS.md

@@ -1,227 +1,133 @@
-# AGENTS.md - Nebula Project Guidelines
+# NEBULA PROJECT KNOWLEDGE BASE
 
-## Project Overview
+**Generated:** 2026-01-11 | **Commit:** fcbe848 | **Branch:** feat/pkg
 
-Nebula is a Go/Templ wallet application with HTMX 4 for server-driven UI and WebAwesome (wa-*) web components.
+## OVERVIEW
 
-**Stack**: Go 1.25+ | templ v0.3.977 | htmx 4.0.0-alpha5 | WebAwesome | SQLite WASM
+Go/Templ wallet UI framework using HTMX 4 for server-driven interactions and WebAwesome (`wa-*`) web components. Hybrid: root is a library (`package nebula`), `cmd/server/` is the reference app.
 
-## Build & Run Commands
-
-```bash
-# Generate Go code from .templ files (REQUIRED after any .templ changes)
-templ generate
-
-# Build the project
-go build ./...
-
-# Run development server (serves on :8080)
-go run main.go
-
-# Watch mode for templ files
-templ generate --watch
-
-# Full build + run + open browser
-make all
-```
-
-## Directory Structure
+## STRUCTURE
 
 ```
 nebula/
-├── models/          # Data types (MVC models)
-├── views/           # Page templates (.templ)
-├── layouts/         # Base layouts (DashboardLayout, CenteredLayout)
-├── components/      # Reusable UI components
-├── handlers/        # HTTP route handlers
-├── _migrate/        # HTML prototypes to convert
-├── HTMX.md          # htmx 4 patterns documentation
-└── SQLC.md          # Database schema documentation
+├── cmd/server/       # App entry: main.go + routes.go (handlers HERE, not handlers/)
+├── views/            # Page templates (.templ) - XxxPage, XxxContent, XxxWithStepper
+├── components/       # Reusable UI (sidebar, stepper, navbar, charts)
+├── layouts/          # Base (HTML shell), App (dashboard), Centered (auth)
+├── models/           # Data structs + DefaultXxxData() factories
+├── htmx/             # HTMX 4 context/request/response helpers
+├── pkg/config/       # Config models for middleware injection
+├── _migrate/         # HTML prototypes pending conversion (technical debt)
+├── middleware.go     # Injects HTMX + Config into request context
+├── mount.go          # Mount() helper for handler registration
+├── options.go        # WithXxx() functional options
+└── config.go         # DefaultConfig() + Config struct
 ```
 
-## Code Style
+## WHERE TO LOOK
 
-### Go Files
+| Task | Location | Notes |
+|------|----------|-------|
+| Add route | `cmd/server/routes.go` | Go 1.22+ patterns: `GET /path/{param}` |
+| Add page | `views/` + `models/` | Create XxxPage + model, register in routes.go |
+| HTMX patterns | `HTMX.md` | `<hx-partial>`, morphing, SSE, OOB updates |
+| Modify layout | `layouts/base.templ` | CDN scripts, htmx-config meta tag |
+| WebAwesome ref | [webawesome.com](https://webawesome.com) | All `wa-*` components |
+| Migrate HTML | `_migrate/` -> `views/` | See MIGRATION.md |
 
-- Standard `gofmt` formatting
-- Package-level types in `models/` directory
-- Handlers in `handlers/routes.go` with pattern: `handleX(w http.ResponseWriter, r *http.Request)`
-- Use `r.Header.Get("HX-Request") == "true"` to detect HTMX requests
-- Return partials for HTMX, full pages for direct navigation
+## CONVENTIONS
 
-### Templ Files (.templ)
+### Naming
 
-- One main page template per file: `PageName(data ModelType) templ.Component`
-- Helper functions lowercase: `helperName()`
-- CSS-in-templ using `templ css` blocks or `<style>` tags
-- Component parameters use Go types from `models/` package
+| Type | Pattern | Example |
+|------|---------|---------|
+| Page template | `XxxPage(data)` | `DashboardPage(data, tab)` |
+| Partial (HTMX) | `XxxContent`, `XxxTab` | `DashboardContent(data, tab)` |
+| OOB update | `XxxWithStepper`, `XxxWithOOB` | `WelcomeStepWithStepper(step)` |
+| Model | `XxxData`, `XxxState` | `DashboardData`, `LoginState` |
+| Factory | `DefaultXxxData()` | `DefaultDashboardData()` |
+| Handler | `handleXxx` | `handleDashboard` |
 
-### Naming Conventions
-
-| Type | Convention | Example |
-|------|------------|---------|
-| Page template | `XxxPage` | `SettingsPage`, `DashboardPage` |
-| Partial template | `XxxContent`, `XxxTab` | `DashboardContent`, `ProfileTab` |
-| OOB update | `XxxWithOOB`, `XxxWithStepper` | `LoginStepWithOOB` |
-| Model struct | PascalCase | `SettingsData`, `ProfileSettings` |
-| Handler func | `handleXxx` | `handleSettings`, `handleDashboard` |
-
-## HTMX 4 Patterns
-
-### Partial Updates
-
-```html
-<div hx-get="/endpoint" hx-target="#target" hx-swap="innerHTML">
-```
-
-### Out-of-Band Updates
+### HTMX 4 Request Pattern
 
 ```go
-templ ComponentWithOOB() {
-    @MainContent()
-    <div id="sidebar" hx-swap-oob="true">
-        @UpdatedSidebar()
+func handleXxx(w http.ResponseWriter, r *http.Request) {
+    data := models.DefaultXxxData()
+    if r.Header.Get("HX-Request") == "true" {
+        views.XxxContent(data).Render(r.Context(), w)  // Partial
+        return
+    }
+    views.XxxPage(data).Render(r.Context(), w)  // Full page
+}
+```
+
+### OOB Updates (Multi-Target)
+
+```templ
+templ XxxStepWithStepper(step int) {
+    @XxxStepContent(step)
+    <div id="stepper-container" hx-swap-oob="innerHTML">
+        @components.Stepper(step, steps)
     </div>
 }
 ```
 
-### HTMX Request Detection
+### Templ Syntax Quick Ref
 
-```go
-if r.Header.Get("HX-Request") == "true" {
-    views.PartialContent(data).Render(r.Context(), w)
-    return
-}
-views.FullPage(data).Render(r.Context(), w)
+```templ
+if cond { }                          // Conditional
+for _, item := range items { }       // Loop
+<input disabled?={ isDisabled } />   // Bool attr
+<div class={ "base " + extra }>      // String interpolation
+@ChildComponent(props)               // Composition
+@templ.Raw(html)                     // Raw HTML (avoid)
 ```
 
-## WebAwesome Components
+## ANTI-PATTERNS (THIS PROJECT)
 
-Use `wa-*` web components for UI:
+| DO NOT | Why |
+|--------|-----|
+| Edit `*_templ.go` files | Generated by `templ generate` - changes purged |
+| Use separate `htmx-ext-*` packages | HTMX 4 bundles extensions at `/dist/ext/` |
+| Rely on implicit inheritance | Use `:inherited` modifier (`hx-target:inherited`) |
+| Use `TopBar` or `TopBarStyles` | DEPRECATED - use `wa-page` slots instead |
+| Manual DOM manipulation | Use `hx-*` attributes; server controls state |
+| Put handlers in `handlers/` | Docs outdated - use `cmd/server/routes.go` |
 
-```html
-<wa-button variant="brand">Click me</wa-button>
-<wa-card>Content</wa-card>
-<wa-tab-group>
-    <wa-tab panel="one">Tab 1</wa-tab>
-    <wa-tab-panel name="one">Panel 1</wa-tab-panel>
-</wa-tab-group>
-<wa-icon name="user"></wa-icon>
-<wa-avatar initials="JD"></wa-avatar>
-```
-
-## Route Registration
-
-All routes in `handlers/routes.go`:
-
-```go
-func RegisterRoutes(mux *http.ServeMux) {
-    mux.HandleFunc("GET /path", handlePath)
-    mux.HandleFunc("POST /path/action", handleAction)
-}
-```
-
-Go 1.22+ routing patterns:
-- `GET /path` - method prefix
-- `GET /path/{param}` - path parameters via `r.PathValue("param")`
-- `GET /path/{param...}` - catch-all
-
-## Model Pattern
-
-Models in `models/` package with `DefaultXxxData()` factory functions:
-
-```go
-// models/example.go
-package models
-
-type ExampleData struct {
-    Field1 string
-    Field2 int
-    Items  []Item
-}
-
-func DefaultExampleData() ExampleData {
-    return ExampleData{
-        Field1: "default",
-        Items:  []Item{...},
-    }
-}
-```
-
-## Migration Pattern (HTML to Templ)
-
-When converting `_migrate/*.html` files:
-
-1. Create model types in `models/xxx.go`
-2. Create view in `views/xxx.templ`
-3. Add route in `handlers/routes.go`
-4. Update sidebar active state in `components/sidebar.templ`
-
-### Templ Syntax Reference
-
-```go
-// Conditionals
-if condition {
-    <div>shown</div>
-}
-
-// Loops
-for _, item := range items {
-    <div>{ item.Name }</div>
-}
-
-// Boolean attributes
-<input disabled?={ isDisabled } />
-<wa-tab active?={ tab == "profile" }>
-
-// String interpolation
-<div class={ "base " + extraClass }>
-<div data-id={ item.ID }>
-
-// Raw HTML (use sparingly)
-@templ.Raw(htmlString)
-
-// Component composition
-@ChildComponent(props)
-```
-
-## Testing
+## COMMANDS
 
 ```bash
-# Run all tests
-go test ./...
+# Generate templ (REQUIRED after .templ changes)
+templ generate
 
-# Run with verbose
-go test -v ./...
+# Dev server on :8080
+go run ./cmd/server
+# OR
+make start
 
-# Run specific package
-go test ./handlers/...
+# Full cycle: generate + start + open browser
+make all
+
+# Build binary
+make build  # outputs ./nebula
+
+# Watch mode
+templ generate --watch
 ```
 
-## Common Tasks
+## STACK VERSIONS
 
-### Add New Page
+- **Go**: 1.25.5 (cutting-edge)
+- **templ**: v0.3.977
+- **htmx**: 4.0.0-alpha5 (CDN)
+- **WebAwesome**: Kit 47c7425b971f443c (CDN)
+- **D3.js**: v7 (charts)
 
-1. Create `models/newpage.go` with data types
-2. Create `views/newpage.templ` with page template
-3. Add handler in `handlers/routes.go`
-4. Add nav item in `components/sidebar.templ` if needed
+## NOTES
 
-### Add New Component
-
-1. Create in `components/newcomp.templ`
-2. Import in views: `import "nebula/components"`
-3. Use: `@components.NewComp(props)`
-
-### Modify Layout
-
-Layouts in `layouts/`:
-- `base.templ` - HTML document wrapper with htmx CDN
-- `app.templ` - Dashboard app shell with sidebar
-- `centered.templ` - Centered auth pages
-
-## Dependencies
-
-- **templ**: Template engine - `go install github.com/a-h/templ/cmd/templ@latest`
-- **htmx 4**: Loaded from CDN in `layouts/base.templ`
-- **WebAwesome**: Loaded from CDN in `layouts/base.templ`
+- **No tests exist** - `go test ./...` returns "no test files"
+- **No CI/CD** - No `.github/workflows/`
+- **SQLite WASM** mentioned in docs but not implemented
+- **Documentation references `handlers/`** - doesn't exist; handlers are in `cmd/server/routes.go`
+- Config split: root `config.go` (app config) vs `pkg/config/` (HTMX feature flags)
+- Middleware chain: `nebula.Middleware(opts...)(mux)` injects context for templates

Makefile

@@ -4,10 +4,13 @@ all: gen start open
 gen:
 	@templ generate
 
+build:
+	@go build -o nebula ./cmd/server
+
 start:
-	@go run main.go
+	@go run ./cmd/server
 
 open:
 	@open http://localhost:8080
 
-.PHONY: gen start
+.PHONY: gen build start open all

cmd/server/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"nebula"
+)
+
+func main() {
+	mux := http.NewServeMux()
+
+	// Register application routes
+	registerRoutes(mux)
+
+	// Apply nebula middleware
+	handler := nebula.Middleware(
+		nebula.WithBasePath("/"),
+		nebula.WithAppTitle("Sonr Wallet"),
+		nebula.WithTheme("dark"),
+		nebula.WithTransitions(true),
+		nebula.WithPreload(true),
+	)(mux)
+
+	addr := ":8080"
+	fmt.Printf("Starting server at http://localhost%s\n", addr)
+	log.Fatal(http.ListenAndServe(addr, handler))
+}

cmd/server/routes.go

@@ -1,4 +1,4 @@
-package handlers
+package main
 
 import (
 	"net/http"
@@ -8,7 +8,7 @@ import (
 	"nebula/views"
 )
 
-func RegisterRoutes(mux *http.ServeMux) {
+func registerRoutes(mux *http.ServeMux) {
 	mux.HandleFunc("GET /", handleWelcome)
 	mux.HandleFunc("GET /welcome", handleWelcome)
 	mux.HandleFunc("GET /welcome/step/{step}", handleWelcomeStep)

config.go

@@ -0,0 +1,19 @@
+package nebula
+
+import (
+	"context"
+
+	"nebula/pkg/config"
+)
+
+type Config = config.Config
+type HTMXConfig = config.HTMXConfig
+type SSEConfig = config.SSEConfig
+
+func DefaultConfig() Config {
+	return config.Default()
+}
+
+func ConfigFromContext(ctx context.Context) *Config {
+	return config.FromContext(ctx)
+}

htmx/context.go

@@ -0,0 +1,36 @@
+package htmx
+
+import "context"
+
+type contextKey string
+
+const htmxContextKey contextKey = "htmx"
+
+type Context struct {
+	IsHTMX     bool
+	IsPartial  bool
+	IsBoosted  bool
+	Target     string
+	Trigger    string
+	TriggerID  string
+	CurrentURL string
+}
+
+func WithContext(ctx context.Context, hc *Context) context.Context {
+	return context.WithValue(ctx, htmxContextKey, hc)
+}
+
+func FromContext(ctx context.Context) *Context {
+	if hc, ok := ctx.Value(htmxContextKey).(*Context); ok {
+		return hc
+	}
+	return &Context{}
+}
+
+func IsHTMXRequest(ctx context.Context) bool {
+	return FromContext(ctx).IsHTMX
+}
+
+func IsPartialRequest(ctx context.Context) bool {
+	return FromContext(ctx).IsPartial
+}

htmx/request.go

@@ -0,0 +1,51 @@
+package htmx
+
+import "net/http"
+
+func IsRequest(r *http.Request) bool {
+	return r.Header.Get("HX-Request") == "true"
+}
+
+func IsPartial(r *http.Request) bool {
+	return r.Header.Get("HX-Request-Type") == "partial"
+}
+
+func IsBoosted(r *http.Request) bool {
+	return r.Header.Get("HX-Boosted") == "true"
+}
+
+func IsHistoryRestore(r *http.Request) bool {
+	return r.Header.Get("HX-History-Restore-Request") == "true"
+}
+
+func GetTarget(r *http.Request) string {
+	return r.Header.Get("HX-Target")
+}
+
+func GetTrigger(r *http.Request) string {
+	return r.Header.Get("HX-Trigger")
+}
+
+func GetTriggerName(r *http.Request) string {
+	return r.Header.Get("HX-Trigger-Name")
+}
+
+func GetCurrentURL(r *http.Request) string {
+	return r.Header.Get("HX-Current-URL")
+}
+
+func GetPromptResponse(r *http.Request) string {
+	return r.Header.Get("HX-Prompt")
+}
+
+func ExtractContext(r *http.Request) *Context {
+	return &Context{
+		IsHTMX:     IsRequest(r),
+		IsPartial:  IsPartial(r),
+		IsBoosted:  IsBoosted(r),
+		Target:     GetTarget(r),
+		Trigger:    GetTrigger(r),
+		TriggerID:  GetTrigger(r),
+		CurrentURL: GetCurrentURL(r),
+	}
+}

htmx/response.go

@@ -0,0 +1,103 @@
+package htmx
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+type Response struct {
+	w http.ResponseWriter
+}
+
+func NewResponse(w http.ResponseWriter) *Response {
+	return &Response{w: w}
+}
+
+func (r *Response) Header() http.Header {
+	return r.w.Header()
+}
+
+func (r *Response) Location(url string) *Response {
+	r.w.Header().Set("HX-Location", url)
+	return r
+}
+
+func (r *Response) LocationWithTarget(url, target string) *Response {
+	data, _ := json.Marshal(map[string]string{"path": url, "target": target})
+	r.w.Header().Set("HX-Location", string(data))
+	return r
+}
+
+func (r *Response) PushURL(url string) *Response {
+	r.w.Header().Set("HX-Push-Url", url)
+	return r
+}
+
+func (r *Response) ReplaceURL(url string) *Response {
+	r.w.Header().Set("HX-Replace-Url", url)
+	return r
+}
+
+func (r *Response) Redirect(url string) *Response {
+	r.w.Header().Set("HX-Redirect", url)
+	return r
+}
+
+func (r *Response) Refresh() *Response {
+	r.w.Header().Set("HX-Refresh", "true")
+	return r
+}
+
+func (r *Response) Reswap(strategy string) *Response {
+	r.w.Header().Set("HX-Reswap", strategy)
+	return r
+}
+
+func (r *Response) ReswapWithModifiers(strategy string) *Response {
+	r.w.Header().Set("HX-Reswap", strategy)
+	return r
+}
+
+func (r *Response) Retarget(selector string) *Response {
+	r.w.Header().Set("HX-Retarget", selector)
+	return r
+}
+
+func (r *Response) Reselect(selector string) *Response {
+	r.w.Header().Set("HX-Reselect", selector)
+	return r
+}
+
+func (r *Response) Trigger(event string) *Response {
+	r.w.Header().Set("HX-Trigger", event)
+	return r
+}
+
+func (r *Response) TriggerWithData(event string, data any) *Response {
+	payload, _ := json.Marshal(map[string]any{event: data})
+	r.w.Header().Set("HX-Trigger", string(payload))
+	return r
+}
+
+func (r *Response) TriggerAfterSwap(event string) *Response {
+	r.w.Header().Set("HX-Trigger-After-Swap", event)
+	return r
+}
+
+func (r *Response) TriggerAfterSettle(event string) *Response {
+	r.w.Header().Set("HX-Trigger-After-Settle", event)
+	return r
+}
+
+func (r *Response) StopPolling() *Response {
+	r.w.WriteHeader(286)
+	return r
+}
+
+func (r *Response) NoContent() {
+	r.w.WriteHeader(http.StatusNoContent)
+}
+
+func (r *Response) PreventSwap() *Response {
+	return r.Reswap("none")
+}

layouts/base.templ

@@ -1,36 +1,44 @@
 package layouts
 
-// Base provides the HTML document structure for all pages
+import "nebula/pkg/config"
+
 templ Base(title string) {
 	<!DOCTYPE html>
-	<html lang="en" class="wa-cloak wa-theme-dark">
+	<html lang="en" class={ "wa-cloak", config.FromContext(ctx).ThemeClass() }>
 		<head>
 			<meta charset="utf-8"/>
 			<meta name="viewport" content="width=device-width, initial-scale=1"/>
 			<meta name="color-scheme" content="dark light"/>
-			<title>{ title } - Sonr Motr Wallet</title>
+			<meta name="htmx-config" content={ config.FromContext(ctx).HTMXConfigJSON() }/>
+			<title>{ title } - { config.FromContext(ctx).AppTitle }</title>
 			<script src="https://kit.webawesome.com/47c7425b971f443c.js" crossorigin="anonymous"></script>
 			<script src="https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/htmx.min.js"></script>
-			<script src="https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/ext/hx-preload.js"></script>
+			if config.FromContext(ctx).Preload {
+				<script src="https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/ext/hx-preload.js"></script>
+			}
 			<script src="https://cdn.jsdelivr.net/npm/d3@7"></script>
-			<style>
-				:root {
-					--wa-color-primary: #17c2ff;
-					--sidebar-width: 64px;
-				}
-				html, body {
-					min-height: 100%;
-					padding: 0;
-					margin: 0;
-					cursor: default;
-				}
-				wa-button, a, [onclick], [hx-get], [hx-post] {
-					cursor: pointer;
-				}
-			</style>
+			@baseStyles()
 		</head>
 		<body>
 			{ children... }
 		</body>
 	</html>
 }
+
+templ baseStyles() {
+	<style>
+		:root {
+			--wa-color-primary: #17c2ff;
+			--sidebar-width: 64px;
+		}
+		html, body {
+			min-height: 100%;
+			padding: 0;
+			margin: 0;
+			cursor: default;
+		}
+		wa-button, a, [onclick], [hx-get], [hx-post] {
+			cursor: pointer;
+		}
+	</style>
+}

layouts/base_templ.go

@@ -8,7 +8,8 @@ package layouts
 import "github.com/a-h/templ"
 import templruntime "github.com/a-h/templ/runtime"
 
-// Base provides the HTML document structure for all pages
+import "nebula/pkg/config"
+
 func Base(title string) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
@@ -30,20 +31,86 @@ func Base(title string) templ.Component {
 			templ_7745c5c3_Var1 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<!doctype html><html lang=\"en\" class=\"wa-cloak wa-theme-dark\"><head><meta charset=\"utf-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"><meta name=\"color-scheme\" content=\"dark light\"><title>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<!doctype html>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var2 string
-		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(title)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `layouts/base.templ`, Line: 11, Col: 17}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
+		var templ_7745c5c3_Var2 = []any{"wa-cloak", config.FromContext(ctx).ThemeClass()}
+		templ_7745c5c3_Err = templ.RenderCSSItems(ctx, templ_7745c5c3_Buffer, templ_7745c5c3_Var2...)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, " - Sonr Motr Wallet</title><script src=\"https://kit.webawesome.com/47c7425b971f443c.js\" crossorigin=\"anonymous\"></script><script src=\"https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/htmx.min.js\"></script><script src=\"https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/ext/hx-preload.js\"></script><script src=\"https://cdn.jsdelivr.net/npm/d3@7\"></script><style>\n\t\t\t\t:root {\n\t\t\t\t\t--wa-color-primary: #17c2ff;\n\t\t\t\t\t--sidebar-width: 64px;\n\t\t\t\t}\n\t\t\t\thtml, body {\n\t\t\t\t\tmin-height: 100%;\n\t\t\t\t\tpadding: 0;\n\t\t\t\t\tmargin: 0;\n\t\t\t\t\tcursor: default;\n\t\t\t\t}\n\t\t\t\twa-button, a, [onclick], [hx-get], [hx-post] {\n\t\t\t\t\tcursor: pointer;\n\t\t\t\t}\n\t\t\t</style></head><body>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "<html lang=\"en\" class=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var3 string
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(templ.CSSClasses(templ_7745c5c3_Var2).String())
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `layouts/base.templ`, Line: 1, Col: 0}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, "\"><head><meta charset=\"utf-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"><meta name=\"color-scheme\" content=\"dark light\"><meta name=\"htmx-config\" content=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var4 string
+		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(config.FromContext(ctx).HTMXConfigJSON())
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `layouts/base.templ`, Line: 12, Col: 78}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "\"><title>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var5 string
+		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(title)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `layouts/base.templ`, Line: 13, Col: 17}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, " - ")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var6 string
+		templ_7745c5c3_Var6, templ_7745c5c3_Err = templ.JoinStringErrs(config.FromContext(ctx).AppTitle)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `layouts/base.templ`, Line: 13, Col: 56}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var6))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 6, "</title><script src=\"https://kit.webawesome.com/47c7425b971f443c.js\" crossorigin=\"anonymous\"></script><script src=\"https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/htmx.min.js\"></script>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if config.FromContext(ctx).Preload {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "<script src=\"https://cdn.jsdelivr.net/npm/htmx.org@4.0.0-alpha5/dist/ext/hx-preload.js\"></script>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "<script src=\"https://cdn.jsdelivr.net/npm/d3@7\"></script>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = baseStyles().Render(ctx, templ_7745c5c3_Buffer)
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "</head><body>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -51,7 +118,36 @@ func Base(title string) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, "</body></html>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "</body></html>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		return nil
+	})
+}
+
+func baseStyles() templ.Component {
+	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
+		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
+			return templ_7745c5c3_CtxErr
+		}
+		templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
+		if !templ_7745c5c3_IsBuffer {
+			defer func() {
+				templ_7745c5c3_BufErr := templruntime.ReleaseBuffer(templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err == nil {
+					templ_7745c5c3_Err = templ_7745c5c3_BufErr
+				}
+			}()
+		}
+		ctx = templ.InitializeContext(ctx)
+		templ_7745c5c3_Var7 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var7 == nil {
+			templ_7745c5c3_Var7 = templ.NopComponent
+		}
+		ctx = templ.ClearChildren(ctx)
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "<style>\n\t\t:root {\n\t\t\t--wa-color-primary: #17c2ff;\n\t\t\t--sidebar-width: 64px;\n\t\t}\n\t\thtml, body {\n\t\t\tmin-height: 100%;\n\t\t\tpadding: 0;\n\t\t\tmargin: 0;\n\t\t\tcursor: default;\n\t\t}\n\t\twa-button, a, [onclick], [hx-get], [hx-post] {\n\t\t\tcursor: pointer;\n\t\t}\n\t</style>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

main.go

@@ -1,18 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"net/http"
-
-	"nebula/handlers"
-)
-
-func main() {
-	mux := http.NewServeMux()
-	handlers.RegisterRoutes(mux)
-
-	addr := ":8080"
-	fmt.Printf("Starting server at http://localhost%s\n", addr)
-	log.Fatal(http.ListenAndServe(addr, mux))
-}

middleware.go

@@ -0,0 +1,38 @@
+package nebula
+
+import (
+	"net/http"
+
+	"nebula/htmx"
+	"nebula/pkg/config"
+)
+
+func Middleware(opts ...Option) func(http.Handler) http.Handler {
+	cfg := DefaultConfig()
+	for _, opt := range opts {
+		opt(&cfg)
+	}
+
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			hxCtx := htmx.ExtractContext(r)
+			ctx := htmx.WithContext(r.Context(), hxCtx)
+			ctx = config.WithContext(ctx, &cfg)
+
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}
+
+func SSEMiddleware() func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if r.Header.Get("Accept") == "text/event-stream" {
+				w.Header().Set("Content-Type", "text/event-stream")
+				w.Header().Set("Cache-Control", "no-cache")
+				w.Header().Set("Connection", "keep-alive")
+			}
+			next.ServeHTTP(w, r)
+		})
+	}
+}

mount.go

@@ -0,0 +1,40 @@
+package nebula
+
+import (
+	"net/http"
+)
+
+// Handler creates a new http.Handler with nebula middleware applied.
+// The handler parameter is wrapped with HTMX context and config middleware.
+func Handler(handler http.Handler, opts ...Option) http.Handler {
+	cfg := DefaultConfig()
+	for _, opt := range opts {
+		opt(&cfg)
+	}
+
+	var h http.Handler = handler
+	h = Middleware(opts...)(h)
+
+	if cfg.SSE.Enabled {
+		h = SSEMiddleware()(h)
+	}
+
+	return h
+}
+
+// Mount registers a handler at the configured base path on the provided mux.
+// Use this to mount your application routes with nebula middleware.
+func Mount(mux *http.ServeMux, handler http.Handler, opts ...Option) {
+	cfg := DefaultConfig()
+	for _, opt := range opts {
+		opt(&cfg)
+	}
+
+	h := Handler(handler, opts...)
+
+	if cfg.BasePath == "/" {
+		mux.Handle("/", h)
+	} else {
+		mux.Handle(cfg.BasePath+"/", http.StripPrefix(cfg.BasePath, h))
+	}
+}

options.go

@@ -0,0 +1,78 @@
+package nebula
+
+type Option func(*Config)
+
+func WithBasePath(path string) Option {
+	return func(c *Config) {
+		c.BasePath = path
+	}
+}
+
+func WithAppTitle(title string) Option {
+	return func(c *Config) {
+		c.AppTitle = title
+	}
+}
+
+func WithTheme(theme string) Option {
+	return func(c *Config) {
+		c.Theme = theme
+	}
+}
+
+func WithTransitions(enabled bool) Option {
+	return func(c *Config) {
+		c.HTMX.Transitions = enabled
+	}
+}
+
+func WithImplicitInheritance(enabled bool) Option {
+	return func(c *Config) {
+		c.HTMX.ImplicitInheritance = enabled
+	}
+}
+
+func WithSelfRequestsOnly(enabled bool) Option {
+	return func(c *Config) {
+		c.HTMX.SelfRequestsOnly = enabled
+	}
+}
+
+func WithTimeout(ms int) Option {
+	return func(c *Config) {
+		c.HTMX.Timeout = ms
+	}
+}
+
+func WithNoSwap(codes ...string) Option {
+	return func(c *Config) {
+		c.HTMX.NoSwap = codes
+	}
+}
+
+func WithSSE(enabled bool) Option {
+	return func(c *Config) {
+		c.SSE.Enabled = enabled
+	}
+}
+
+func WithSSEReconnect(enabled bool, delay, maxDelay, maxAttempts int) Option {
+	return func(c *Config) {
+		c.SSE.Reconnect = enabled
+		c.SSE.ReconnectDelay = delay
+		c.SSE.ReconnectMaxDelay = maxDelay
+		c.SSE.ReconnectMaxAttempts = maxAttempts
+	}
+}
+
+func WithPreload(enabled bool) Option {
+	return func(c *Config) {
+		c.Preload = enabled
+	}
+}
+
+func WithMorphing(enabled bool) Option {
+	return func(c *Config) {
+		c.Morphing = enabled
+	}
+}

pkg/config/config.go

@@ -0,0 +1,106 @@
+package config
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+)
+
+type contextKey struct{}
+
+type Config struct {
+	BasePath string
+	AppTitle string
+	Theme    string
+	HTMX     HTMXConfig
+	SSE      SSEConfig
+	Preload  bool
+	Morphing bool
+}
+
+type HTMXConfig struct {
+	Transitions         bool
+	ImplicitInheritance bool
+	SelfRequestsOnly    bool
+	Timeout             int
+	NoSwap              []string
+}
+
+type SSEConfig struct {
+	Enabled              bool
+	Reconnect            bool
+	ReconnectDelay       int
+	ReconnectMaxDelay    int
+	ReconnectMaxAttempts int
+	ReconnectJitter      float64
+	PauseInBackground    bool
+}
+
+func Default() Config {
+	return Config{
+		BasePath: "/",
+		AppTitle: "Sonr Wallet",
+		Theme:    "dark",
+		HTMX: HTMXConfig{
+			Transitions:         true,
+			ImplicitInheritance: false,
+			SelfRequestsOnly:    true,
+			Timeout:             0,
+			NoSwap:              []string{"204", "304"},
+		},
+		SSE: SSEConfig{
+			Enabled:              true,
+			Reconnect:            true,
+			ReconnectDelay:       500,
+			ReconnectMaxDelay:    60000,
+			ReconnectMaxAttempts: 10,
+			ReconnectJitter:      0.3,
+			PauseInBackground:    false,
+		},
+		Preload:  true,
+		Morphing: true,
+	}
+}
+
+func WithContext(ctx context.Context, cfg *Config) context.Context {
+	return context.WithValue(ctx, contextKey{}, cfg)
+}
+
+func FromContext(ctx context.Context) *Config {
+	if cfg, ok := ctx.Value(contextKey{}).(*Config); ok {
+		return cfg
+	}
+	defaultCfg := Default()
+	return &defaultCfg
+}
+
+func (c *Config) HTMXConfigJSON() string {
+	cfg := map[string]any{
+		"transitions":         c.HTMX.Transitions,
+		"implicitInheritance": c.HTMX.ImplicitInheritance,
+		"selfRequestsOnly":    c.HTMX.SelfRequestsOnly,
+		"timeout":             c.HTMX.Timeout,
+		"noSwap":              c.HTMX.NoSwap,
+	}
+
+	if c.SSE.Enabled {
+		cfg["streams"] = map[string]any{
+			"reconnect":            c.SSE.Reconnect,
+			"reconnectDelay":       c.SSE.ReconnectDelay,
+			"reconnectMaxDelay":    c.SSE.ReconnectMaxDelay,
+			"reconnectMaxAttempts": c.SSE.ReconnectMaxAttempts,
+			"reconnectJitter":      c.SSE.ReconnectJitter,
+			"pauseInBackground":    c.SSE.PauseInBackground,
+		}
+	}
+
+	data, err := json.Marshal(cfg)
+	if err != nil {
+		return "{}"
+	}
+	return string(data)
+}
+
+func (c *Config) ThemeClass() string {
+	return fmt.Sprintf("wa-theme-%s", c.Theme)
+}