29 files changed, 1179 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d58ae36
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external/protobuf"]
+	path = external/protobuf
+	url = https://github.com/protocolbuffers/protobuf.git
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7ef18f3
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,30 @@
+BUILD_DIR=./build
+APP=rafta
+
+all: setup codegen clean compile
+
+setup:
+	git submodule update --init
+
+codegen:
+	protoc \
+		--proto_path=resources \
+		--proto_path=external \
+		--go_out=internal/server/model \
+		--go_opt=paths=source_relative \
+		--go-grpc_out=internal/server/model \
+		--go-grpc_opt=paths=source_relative \
+		resources/schema.proto
+
+clean:
+	rm -rf $(BUILD_DIR) || exit 1
+
+compile:
+	mkdir -p $(BUILD_DIR) || exit 1
+	CGO_ENABLED=1 go run ./internal/manualgen > $(BUILD_DIR)/$(APP).1
+	CGO_ENABLED=1 go build -o $(BUILD_DIR)/$(APP) .
+
+.PHONY: run
+run:
+	./resources/local_dev.sh
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..eef8ea6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,99 @@
+<div align="center">
+
+  <img alt="A raft (boat) in a sea of tasks (checkmarks) logo" src="assets/logo.png" width="250px" />
+
+# Rafta
+
+**R**eally, **A**nother **F***cking **T**odo **A**pp?!
+
+</div>
+
+
+## Why another TODO app?
+
+Many open source implementations for ToDo apps go with a file-based approach
+(ex: task-warrior, todo-txt, orgmode, markdown). While this simplicity is
+elegant, it usually results in implementations that is lacking in the
+following scenarios:
+
+- Timely cross-device syncing
+- Notifications (for reminders and due tasks)
+- Good mobile interfaces
+
+This is one of the reason many people prefer a server based approach (ex:
+Todoist, Apple reminders, Evernote, TickTick). However, these tend to be much
+more complex and gravitate towards a proprietary, for-profit solution. This
+makes them generally harder to hack around when it comes to creating custom
+clients
+
+This project aims to get the best of both worlds: Cross platform reliability of
+a server-based approach with the hackability of scrappy text-based management.
+
+## Goals
+
+This project stems from my frustration trying to find a decent Task management
+infrastructure that fits my needs. So the project's primary goals are to
+fulfill the following needs:
+
+- Easy synchronisation between multiple clients (mobile desktop and such)
+- Neovim plugin as a desktop client (with a similar feel to [oil.nvim][1])
+- Pretty mobile interface (most txt-based apps are quite ugly IMO)
+- Notifications that are on-time on mobile
+- Easy extensibility through third-party clients (both daemons & user-facing)
+
+## Implementation
+
+So what's the plan to achieve this? This repo contains the implementation
+of a server as well as the communication specification to that server.
+Everyone is welcome to create their own frontend for that server as well as
+other tooling that can communicate with said server. Examples of that could be
+
+- mobile/desktop app
+- web app
+- text-editor plugin
+- conky/uebersicht desktop task viewer
+- Web Endpoint for an iCal calendar
+- webhook server
+
+As this project is in its infancy, specifications are subject to change but
+this is bound to diminish over time. Communications are done over a gRPC
+specification that can be found in the `resources/schema.proto` file.
+
+The end result would be something similar to this:
+
+```mermaid
+flowchart TD
+    Srv[Self-hosted Rafta Server]
+    A[Mobile App]
+    B[Neovim plugin]
+    C[TUI App]
+    D[Web App]
+    E[iCal generator]
+    Srv <--> |gRPC| A
+    Srv <--> |gRPC| B
+    Srv <--> |gRPC| C
+    Srv <--> |gRPC| D
+    Srv <--> |gRPC| E
+```
+
+Since the aim is for each user to self host his task (and at most the task of a
+few friends), a single container approach with an SQLite storage solution will
+be implemented.
+
+The centerpiece is the server itself so but as it's development matures, I will
+try and develop a client in Neovim as well as a mobile client.
+
+## Roadmap
+
+- [X] Protobuf schema definition
+- [X] Blank Database Initialization
+- [X] Request-ID tracking middleware
+- [X] Logging framework (request-ID, stack traces, optional Json)
+- [ ] **Actual Server Logic**
+- [ ] Task re-scheduling routine
+- [ ] User Authentication (probably jwt)
+- [ ] Neovim plugin client
+
+
+
+[1]: https://github.com/stevearc/oil.nvim
diff --git a/assets/logo.png b/assets/logo.png
new file mode 100644
index 0000000..ec96600
--- /dev/null
+++ b/assets/logo.png
diff --git a/external/protobuf b/external/protobuf
new file mode 160000
+Subproject ae3015c78a0ea3baa76f3ad556c0ecd575f2e61
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6e13b01
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,32 @@
+module github.com/ChausseBenjamin/rafta
+
+go 1.23.4
+
+require (
+	github.com/charmbracelet/log v0.4.0
+	github.com/hashicorp/go-uuid v1.0.3
+	github.com/mattn/go-sqlite3 v1.14.24
+	github.com/urfave/cli-docs/v3 v3.0.0-alpha6
+	github.com/urfave/cli/v3 v3.0.0-beta1
+	google.golang.org/grpc v1.70.0
+	google.golang.org/protobuf v1.36.4
+)
+
+require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/charmbracelet/lipgloss v0.10.0 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/go-logfmt/logfmt v0.6.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/muesli/reflow v0.3.0 // indirect
+	github.com/muesli/termenv v0.15.2 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/net v0.32.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241202173237-19429a94021a // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..f47a5c4
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,78 @@
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/charmbracelet/lipgloss v0.10.0 h1:KWeXFSexGcfahHX+54URiZGkBFazf70JNMtwg/AFW3s=
+github.com/charmbracelet/lipgloss v0.10.0/go.mod h1:Wig9DSfvANsxqkRsqj6x87irdy123SR4dOXlKa91ciE=
+github.com/charmbracelet/log v0.4.0 h1:G9bQAcx8rWA2T3pWvx7YtPTPwgqpk7D68BX21IRW8ZM=
+github.com/charmbracelet/log v0.4.0/go.mod h1:63bXt/djrizTec0l11H20t8FDSvA4CRZJ1KH22MdptM=
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+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-logfmt/logfmt v0.6.0 h1:wGYYu3uicYdqXVgoYbvnkrPVXkuLM1p1ifugDMEdRi4=
+github.com/go-logfmt/logfmt v0.6.0/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
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+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
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+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
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diff --git a/internal/app/action.go b/internal/app/action.go
new file mode 100644
index 0000000..b579253
--- /dev/null
+++ b/internal/app/action.go
@@ -0,0 +1,47 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+	"github.com/ChausseBenjamin/rafta/internal/server"
+	"github.com/ChausseBenjamin/rafta/internal/storage"
+	"github.com/urfave/cli/v3"
+)
+
+func action(ctx context.Context, cmd *cli.Command) error {
+	err := logging.Setup(
+		cmd.String(FlagLogLevel),
+		cmd.String(FlagLogFormat),
+		cmd.String(FlagLogOutput),
+	)
+	if err != nil {
+		slog.Warn("Error(s) occured during logger initialization", logging.ErrKey, err)
+	}
+
+	slog.Info("Starting rafta server")
+
+	// TODO: Setup the db
+	store, err := storage.Setup(cmd.String(FlagDBPath))
+	if err != nil {
+		slog.Error("Unable to setup database", logging.ErrKey, err)
+	}
+
+	srv, lis, err := server.Setup(cmd.Int(FlagListenPort), store)
+	if err != nil {
+		slog.Error("Unable to setup server", logging.ErrKey, err)
+
+		return err
+	}
+
+	slog.Info(fmt.Sprintf("Listening on port %d", cmd.Int(FlagListenPort)))
+	if err := srv.Serve(lis); err != nil {
+		slog.Error("Server runtime error", logging.ErrKey, err)
+
+		return err
+	}
+
+	return nil
+}
diff --git a/internal/app/command.go b/internal/app/command.go
new file mode 100644
index 0000000..5c32ba2
--- /dev/null
+++ b/internal/app/command.go
@@ -0,0 +1,23 @@
+package app
+
+import (
+	"github.com/urfave/cli/v3"
+)
+
+const (
+	AppName  = "rafta"
+	AppUsage = "Really, Another Freaking Todo App?!"
+)
+
+var version = "COMPILED"
+
+func Command() *cli.Command {
+	return &cli.Command{
+		Name:    AppName,
+		Usage:   AppUsage,
+		Authors: []any{"Benjamin Chausse <benjamin@chausse.xyz>"},
+		Version: version,
+		Flags:   flags(),
+		Action:  action,
+	}
+}
diff --git a/internal/app/flags.go b/internal/app/flags.go
new file mode 100644
index 0000000..e96b8ef
--- /dev/null
+++ b/internal/app/flags.go
@@ -0,0 +1,127 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"strings"
+
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+	"github.com/ChausseBenjamin/rafta/internal/server"
+	"github.com/urfave/cli/v3"
+)
+
+const (
+	FlagListenPort = "port"
+	FlagLogLevel   = "log-level"
+	FlagLogFormat  = "log-format"
+	FlagLogOutput  = "log-output"
+	FlagDBPath     = "database"
+)
+
+func flags() []cli.Flag {
+	return []cli.Flag{
+		// Logging {{{
+		&cli.StringFlag{
+			Name:    FlagLogFormat,
+			Aliases: []string{"f"},
+			Value:   "plain",
+			Usage:   "plain, json",
+			Sources: cli.EnvVars("LOG_FORMAT"),
+			Action:  validateLogFormat,
+		},
+		&cli.StringFlag{
+			Name:    FlagLogOutput,
+			Aliases: []string{"o"},
+			Value:   "stdout",
+			Usage:   "stdout, stderr, file",
+			Sources: cli.EnvVars("LOG_OUTPUT"),
+			Action:  validateLogOutput,
+		},
+		&cli.StringFlag{
+			Name:    FlagLogLevel,
+			Aliases: []string{"l"},
+			Value:   "info",
+			Usage:   "debug, info, warn, error",
+			Sources: cli.EnvVars("LOG_LEVEL"),
+			Action:  validateLogLevel,
+		}, // }}}
+		// gRPC server {{{
+		&cli.IntFlag{
+			Name:    FlagListenPort,
+			Aliases: []string{"p"},
+			Value:   1234,
+			Sources: cli.EnvVars("LISTEN_PORT"),
+			Action:  validateListenPort,
+		}, // }}}
+		// Database {{{
+		&cli.StringFlag{
+			Name:    FlagDBPath,
+			Aliases: []string{"d"},
+			Value:   "store.db",
+			Usage:   "database file",
+			Sources: cli.EnvVars("DATABASE_PATH"),
+			Action:  validateDBPath,
+		}, // }}}
+	}
+}
+
+func validateLogOutput(ctx context.Context, cmd *cli.Command, s string) error {
+	switch {
+	case s == "stdout" || s == "stderr":
+		return nil
+	default:
+		// assume file
+		f, err := os.OpenFile(s, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+		if err != nil {
+			slog.ErrorContext(
+				ctx,
+				fmt.Sprintf("Error creating/accessing provided log file %s", s),
+			)
+			return err
+		}
+		defer f.Close()
+		return nil
+	}
+}
+
+func validateLogLevel(ctx context.Context, cmd *cli.Command, s string) error {
+	for _, lvl := range []string{"deb", "inf", "warn", "err"} {
+		if strings.Contains(strings.ToLower(s), lvl) {
+			return nil
+		}
+	}
+	slog.ErrorContext(
+		ctx,
+		fmt.Sprintf("Unknown log level provided: %s", s),
+	)
+	return logging.ErrInvalidLevel
+}
+
+func validateLogFormat(ctx context.Context, cmd *cli.Command, s string) error {
+	s = strings.ToLower(s)
+	if s == "json" || s == "plain" {
+		return nil
+	}
+	return nil
+}
+
+func validateListenPort(ctx context.Context, cmd *cli.Command, p int64) error {
+	if p < 1024 || p > 65535 {
+		slog.ErrorContext(
+			ctx,
+			fmt.Sprintf("Out-of-bound port provided: %d", p),
+		)
+		return server.ErrOutOfBoundsPort
+	}
+	return nil
+}
+
+func validateDBPath(ctx context.Context, cmd *cli.Command, s string) error {
+	// TODO: Ensure the db file is writable.
+	// TODO: Ensure the db file is a valid sqlite3 db.
+	// TODO: Call db.Reset() if either of the above fail.
+	// TODO: Log the error/crash if the db file is not writable.
+	return nil
+}
diff --git a/internal/logging/context.go b/internal/logging/context.go
new file mode 100644
index 0000000..29bad62
--- /dev/null
+++ b/internal/logging/context.go
@@ -0,0 +1,39 @@
+package logging
+
+import (
+	"context"
+	"log/slog"
+)
+
+type ctxTracker struct {
+	ctxKey interface{}
+	logKey string
+	next   slog.Handler
+}
+
+func (h ctxTracker) Handle(ctx context.Context, r slog.Record) error {
+	if v := ctx.Value(h.ctxKey); v != nil {
+		r.AddAttrs(slog.Any(h.logKey, v))
+	}
+	return h.next.Handle(ctx, r)
+}
+
+func (h ctxTracker) Enabled(ctx context.Context, lvl slog.Level) bool {
+	return h.next.Enabled(ctx, lvl)
+}
+
+func (h ctxTracker) WithAttrs(attrs []slog.Attr) slog.Handler {
+	return h.next.WithAttrs(attrs)
+}
+
+func (h ctxTracker) WithGroup(name string) slog.Handler {
+	return h.next.WithGroup(name)
+}
+
+func withTrackedContext(current slog.Handler, ctxKey interface{}, logKey string) *ctxTracker {
+	return &ctxTracker{
+		ctxKey: ctxKey,
+		logKey: logKey,
+		next:   current,
+	}
+}
diff --git a/internal/logging/logging.go b/internal/logging/logging.go
new file mode 100644
index 0000000..91a9734
--- /dev/null
+++ b/internal/logging/logging.go
@@ -0,0 +1,92 @@
+package logging
+
+import (
+	"errors"
+	"io"
+	"log/slog"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/ChausseBenjamin/rafta/internal/util"
+	"github.com/charmbracelet/log"
+)
+
+const (
+	ErrKey = "error_message"
+)
+
+var (
+	ErrInvalidLevel  = errors.New("invalid log level")
+	ErrInvalidFormat = errors.New("invalid log format")
+)
+
+func Setup(lvlStr, fmtStr, outStr string) error {
+	output, outputErr := setOutput(outStr)
+	format, formatErr := setFormat(fmtStr)
+	level, levelErr := setLevel(lvlStr)
+
+	prefixStr := ""
+	if format != log.JSONFormatter {
+		prefixStr = "Rafta 🚢"
+	}
+
+	var h slog.Handler = log.NewWithOptions(
+		output,
+		log.Options{
+			TimeFormat:   time.DateTime,
+			Prefix:       prefixStr,
+			Level:        level,
+			ReportCaller: true,
+			Formatter:    format,
+		},
+	)
+
+	h = withTrackedContext(h, util.ReqIDKey, "request_id")
+	h = withStackTrace(h)
+	slog.SetDefault(slog.New(h))
+	return errors.Join(outputErr, formatErr, levelErr)
+}
+
+func setLevel(target string) (log.Level, error) {
+	for _, l := range []struct {
+		prefix string
+		level  log.Level
+	}{
+		{"deb", log.DebugLevel},
+		{"inf", log.InfoLevel},
+		{"warn", log.WarnLevel},
+		{"err", log.ErrorLevel},
+	} {
+		if strings.HasPrefix(strings.ToLower(target), l.prefix) {
+			return l.level, nil
+		}
+	}
+	return log.InfoLevel, ErrInvalidLevel
+}
+
+func setFormat(f string) (log.Formatter, error) {
+	switch f {
+	case "plain", "text":
+		return log.TextFormatter, nil
+	case "json", "structured":
+		return log.JSONFormatter, nil
+	}
+	return log.TextFormatter, ErrInvalidFormat
+}
+
+func setOutput(path string) (io.Writer, error) {
+	switch path {
+	case "stdout":
+		return os.Stdout, nil
+	case "stderr":
+		return os.Stderr, nil
+	default:
+		f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+		if err != nil {
+			return os.Stdout, err
+		} else {
+			return f, nil
+		}
+	}
+}
diff --git a/internal/logging/trace.go b/internal/logging/trace.go
new file mode 100644
index 0000000..8900727
--- /dev/null
+++ b/internal/logging/trace.go
@@ -0,0 +1,61 @@
+package logging
+
+import (
+	"context"
+	"log/slog"
+	"runtime"
+	"strconv"
+	"strings"
+)
+
+const (
+	prgCount = 20
+	defSkip  = 6
+)
+
+type stackTracer struct {
+	h     slog.Handler
+	nSkip int
+}
+
+func (h stackTracer) Enabled(ctx context.Context, lvl slog.Level) bool {
+	return h.h.Enabled(ctx, lvl)
+}
+
+func (h stackTracer) WithAttrs(attrs []slog.Attr) slog.Handler {
+	return h.h.WithAttrs(attrs)
+}
+
+func (h stackTracer) WithGroup(name string) slog.Handler {
+	return h.h.WithGroup(name)
+}
+
+func (h stackTracer) Handle(ctx context.Context, r slog.Record) error {
+	if r.Level < slog.LevelError {
+		return h.h.Handle(ctx, r)
+	}
+
+	trace := h.GetTrace()
+	r.AddAttrs(slog.String("trace", trace))
+
+	return h.h.Handle(ctx, r)
+}
+
+func (h stackTracer) GetTrace() string {
+	var b strings.Builder
+	pc := make([]uintptr, prgCount)
+	n := runtime.Callers(h.nSkip, pc)
+	frames := runtime.CallersFrames(pc[:n])
+
+	for frame, more := frames.Next(); more; frame, more = frames.Next() {
+		b.WriteString(frame.Function + "\n    " + frame.File + ":" + strconv.Itoa(frame.Line) + "\n")
+	}
+	return b.String()
+}
+
+func withStackTrace(h slog.Handler) slog.Handler {
+	return stackTracer{
+		h:     h,
+		nSkip: defSkip,
+	}
+}
diff --git a/internal/manualgen/manualgen.go b/internal/manualgen/manualgen.go
new file mode 100644
index 0000000..88a72e2
--- /dev/null
+++ b/internal/manualgen/manualgen.go
@@ -0,0 +1,21 @@
+package main
+
+import (
+	"log/slog"
+	"os"
+
+	"github.com/ChausseBenjamin/rafta/internal/app"
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+	docs "github.com/urfave/cli-docs/v3"
+)
+
+func main() {
+	a := app.Command()
+
+	man, err := docs.ToManWithSection(a, 1)
+	if err != nil {
+		slog.Error("failed to generate markdown", logging.ErrKey, err)
+		os.Exit(1)
+	}
+	os.Stdout.Write([]byte(man))
+}
diff --git a/internal/server/model/.gitignore b/internal/server/model/.gitignore
new file mode 100644
index 0000000..d6b7ef3
--- /dev/null
+++ b/internal/server/model/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
diff --git a/internal/server/server.go b/internal/server/server.go
new file mode 100644
index 0000000..70e5861
--- /dev/null
+++ b/internal/server/server.go
@@ -0,0 +1,16 @@
+package server
+
+import (
+	"database/sql"
+	"errors"
+
+	m "github.com/ChausseBenjamin/rafta/internal/server/model"
+)
+
+var ErrOutOfBoundsPort = errors.New("port out of bounds")
+
+// Implements ComsServer interface
+type Service struct {
+	store *sql.DB
+	m.UnimplementedRaftaServer
+}
diff --git a/internal/server/setup.go b/internal/server/setup.go
new file mode 100644
index 0000000..551cd95
--- /dev/null
+++ b/internal/server/setup.go
@@ -0,0 +1,34 @@
+package server
+
+import (
+	"database/sql"
+	"fmt"
+	"log/slog"
+	"net"
+
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+	m "github.com/ChausseBenjamin/rafta/internal/server/model"
+	"github.com/ChausseBenjamin/rafta/internal/tagging"
+	"google.golang.org/grpc"
+)
+
+func Setup(port int64, storage *sql.DB) (*grpc.Server, net.Listener, error) {
+	lis, err := net.Listen(
+		"tcp",
+		fmt.Sprintf(":%d", port),
+	)
+	if err != nil {
+		slog.Error("Unable to create listener", logging.ErrKey, err)
+		return nil, nil, err
+	}
+
+	grpcServer := grpc.NewServer(
+		grpc.ChainUnaryInterceptor(
+			tagging.UnaryInterceptor,
+		),
+	)
+	raftaService := &Service{store: storage}
+	m.RegisterRaftaServer(grpcServer, raftaService)
+
+	return grpcServer, lis, nil
+}
diff --git a/internal/server/task.go b/internal/server/task.go
new file mode 100644
index 0000000..b8cf0b8
--- /dev/null
+++ b/internal/server/task.go
@@ -0,0 +1,33 @@
+package server
+
+import (
+	"context"
+	"log/slog"
+
+	m "github.com/ChausseBenjamin/rafta/internal/server/model"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func (s Service) GetUserTasks(ctx context.Context, id *m.UserID) (*m.TaskList, error) {
+	slog.ErrorContext(ctx, "GetUserTasks not implemented yet")
+	return nil, nil
+}
+
+func (s Service) GetTask(ctx context.Context, id *m.TaskID) (*m.Task, error) {
+	return nil, nil
+}
+
+func (s Service) DeleteTask(ctx context.Context, id *m.TaskID) (*emptypb.Empty, error) {
+	slog.ErrorContext(ctx, "DeleteTask not implemented yet")
+	return nil, nil
+}
+
+func (s Service) UpdateTask(ctx context.Context, t *m.Task) (*m.Task, error) {
+	slog.ErrorContext(ctx, "UpdateTask not implemented yet")
+	return t, nil
+}
+
+func (s Service) CreateTask(ctx context.Context, data *m.TaskData) (*m.Task, error) {
+	slog.ErrorContext(ctx, "CreateTask not implemented yet")
+	return nil, nil
+}
diff --git a/internal/server/user.go b/internal/server/user.go
new file mode 100644
index 0000000..c4a97c4
--- /dev/null
+++ b/internal/server/user.go
@@ -0,0 +1,34 @@
+package server
+
+import (
+	"context"
+	"log/slog"
+
+	m "github.com/ChausseBenjamin/rafta/internal/server/model"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func (s Service) GetAllUsers(ctx context.Context, empty *emptypb.Empty) (*m.UserList, error) {
+	slog.ErrorContext(ctx, "GetAllUsers not implemented yet")
+	return nil, nil
+}
+
+func (s Service) GetUser(ctx context.Context, id *m.UserID) (*m.User, error) {
+	slog.ErrorContext(ctx, "GetUser not implemented yet")
+	return nil, nil
+}
+
+func (s Service) DeleteUser(ctx context.Context, id *m.UserID) (*emptypb.Empty, error) {
+	slog.ErrorContext(ctx, "DeleteUser not implemented yet")
+	return nil, nil
+}
+
+func (s Service) UpdateUser(ctx context.Context, u *m.User) (*m.User, error) {
+	slog.ErrorContext(ctx, "UpdateUser not implemented yet")
+	return nil, nil
+}
+
+func (s Service) CreateUser(ctx context.Context, data *m.UserData) (*m.User, error) {
+	slog.ErrorContext(ctx, "CreateUser not implemented yet")
+	return nil, nil
+}
diff --git a/internal/storage/db.go b/internal/storage/db.go
new file mode 100644
index 0000000..06fe31c
--- /dev/null
+++ b/internal/storage/db.go
@@ -0,0 +1,18 @@
+package storage
+
+import (
+	"context"
+	"database/sql"
+	"log/slog"
+
+	"github.com/ChausseBenjamin/rafta/internal/util"
+)
+
+func GetDB(ctx context.Context) *sql.DB {
+	db, ok := ctx.Value(util.DBKey).(*sql.DB)
+	if !ok {
+		slog.Error("Unable to retrieve database from context")
+		return nil
+	}
+	return db
+}
diff --git a/internal/storage/schema.go b/internal/storage/schema.go
new file mode 100644
index 0000000..042c09b
--- /dev/null
+++ b/internal/storage/schema.go
@@ -0,0 +1,38 @@
+package storage
+
+func opts() string {
+	return "?_foreign_keys=on&_journal_mode=WAL"
+}
+
+func schema() string {
+	return `
+CREATE TABLE User (
+  UserID INTEGER PRIMARY KEY AUTOINCREMENT,
+  Name TEXT NOT NULL,
+  Email TEXT NOT NULL UNIQUE
+);
+
+CREATE TABLE Task (
+  TaskID INTEGER PRIMARY KEY AUTOINCREMENT,
+  Title TEXT NOT NULL,
+  Description TEXT NOT NULL,
+  Due DATE NOT NULL,
+  Do DATE NOT NULL,
+  Owner INTEGER NOT NULL,
+  FOREIGN KEY (Owner) REFERENCES User(UserID) ON DELETE CASCADE
+);
+
+CREATE TABLE Tag (
+  TagID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+  Name TEXT NOT NULL UNIQUE
+);
+
+CREATE TABLE TaskTag (
+  TaskUUID INTEGER NOT NULL,
+  TagID INTEGER NOT NULL,
+  PRIMARY KEY (TaskUUID, TagID),
+  FOREIGN KEY (TaskUUID) REFERENCES Task(UUID) ON DELETE CASCADE,
+  FOREIGN KEY (TagID) REFERENCES Tag(TagID) ON DELETE CASCADE
+);
+`
+}
diff --git a/internal/storage/setup.go b/internal/storage/setup.go
new file mode 100644
index 0000000..f103b15
--- /dev/null
+++ b/internal/storage/setup.go
@@ -0,0 +1,201 @@
+package storage
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"log/slog"
+	"os"
+	"strings"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var (
+	ErrIntegrityCheckFailed = errors.New("integrity check failed")
+	ErrForeignKeysDisabled  = errors.New("foreign_keys pragma is not enabled")
+	ErrJournalModeInvalid   = errors.New("journal_mode is not wal")
+	ErrSchemaMismatch       = errors.New("schema does not match expected definition")
+)
+
+// Setup opens the SQLite DB at path, verifies its integrity and schema,
+// and returns the valid DB handle. On any error, it backs up the old file
+// (if it exists) and calls genDB() to initialize a valid schema.
+func Setup(path string) (*sql.DB, error) {
+	_, statErr := os.Stat(path)
+	exists := statErr == nil
+
+	// If file doesn't exist, generate new DB.
+	if !exists {
+		return genDB(path)
+	}
+
+	db, err := sql.Open("sqlite3", path+opts())
+	if err != nil {
+		slog.Error("failed to open DB", "error", err)
+		backupFile(path)
+		return genDB(path)
+	}
+
+	// Integrity check.
+	var integrity string
+	if err = db.QueryRow("PRAGMA integrity_check;").Scan(&integrity); err != nil {
+		slog.Error("integrity check query failed", "error", err)
+		db.Close()
+		backupFile(path)
+		return genDB(path)
+	}
+	if integrity != "ok" {
+		slog.Error("integrity check failed", "error", ErrIntegrityCheckFailed)
+		db.Close()
+		backupFile(path)
+		return genDB(path)
+	}
+
+	// Validate schema and pragmas.
+	if err = validateSchema(db); err != nil {
+		slog.Error("schema validation failed", "error", err)
+		db.Close()
+		backupFile(path)
+		return genDB(path)
+	}
+
+	return db, nil
+}
+
+// validateSchema verifies that required pragmas and table definitions are set.
+func validateSchema(db *sql.DB) error {
+	// Check PRAGMA foreign_keys = on.
+	var fk int
+	if err := db.QueryRow("PRAGMA foreign_keys;").Scan(&fk); err != nil {
+		return err
+	}
+	if fk != 1 {
+		return ErrForeignKeysDisabled
+	}
+
+	// Check PRAGMA journal_mode = wal.
+	var jm string
+	if err := db.QueryRow("PRAGMA journal_mode;").Scan(&jm); err != nil {
+		return err
+	}
+	if strings.ToLower(jm) != "wal" {
+		return ErrJournalModeInvalid
+	}
+
+	// Define required table definitions (as substrings in lower-case).
+	type tableCheck struct {
+		name       string
+		substrings []string
+	}
+
+	checks := []tableCheck{
+		{
+			name: "User",
+			substrings: []string{
+				"create table user",
+				"userid", "integer", "primary key", "autoincrement",
+				"name", "text", "not null",
+				"email", "text", "not null", "unique",
+			},
+		},
+		{
+			name: "Task",
+			substrings: []string{
+				"create table task",
+				"taskid", "integer", "primary key", "autoincrement",
+				"title", "not null",
+				"description", "not null",
+				"due", "date", "not null",
+				"do", "date", "not null",
+				"owner", "integer", "not null",
+				"foreign key", "references user",
+			},
+		},
+		{
+			name: "Tag",
+			substrings: []string{
+				"create table tag",
+				"tagid", "integer", "primary key", "autoincrement",
+				"name", "text", "not null", "unique",
+			},
+		},
+		{
+			name: "TaskTag",
+			substrings: []string{
+				"create table tasktag",
+				"taskuuid", "integer", "not null",
+				"tagid", "integer", "not null",
+				"primary key",
+				"foreign key", "references task",
+				"foreign key", "references tag",
+			},
+		},
+	}
+
+	for _, chk := range checks {
+		sqlDef, err := fetchTableSQL(db, chk.name)
+		if err != nil {
+			return fmt.Errorf("failed to fetch definition for table %s: %w", chk.name, err)
+		}
+		lc := strings.ToLower(sqlDef)
+		for _, substr := range chk.substrings {
+			if !strings.Contains(lc, substr) {
+				return fmt.Errorf("%w: table %s missing %q", ErrSchemaMismatch, chk.name, substr)
+			}
+		}
+	}
+
+	return nil
+}
+
+func fetchTableSQL(db *sql.DB, table string) (string, error) {
+	var sqlDef sql.NullString
+	err := db.QueryRow("SELECT sql FROM sqlite_master WHERE type='table' AND name=?", table).Scan(&sqlDef)
+	if err != nil {
+		return "", err
+	}
+	if !sqlDef.Valid {
+		return "", fmt.Errorf("no SQL definition found for table %s", table)
+	}
+	return sqlDef.String, nil
+}
+
+// backupFile renames the existing file by appending a ".bak" suffix.
+func backupFile(path string) {
+	backupPath := path + ".bak"
+	// If backupPath exists, append a timestamp.
+	if _, err := os.Stat(backupPath); err == nil {
+		backupPath = fmt.Sprintf("%s.%d.bak", path, os.Getpid())
+	}
+	if err := os.Rename(path, backupPath); err != nil {
+		slog.Error("failed to backup file", "error", err, "original", path, "backup", backupPath)
+	} else {
+		slog.Info("backed up corrupt DB", "original", path, "backup", backupPath)
+	}
+}
+
+// genDB creates a new database at path with the valid schema.
+func genDB(path string) (*sql.DB, error) {
+	db, err := sql.Open("sqlite3", path)
+	if err != nil {
+		slog.Error("failed to create DB", "error", err)
+		return nil, err
+	}
+
+	// Set pragmas.
+	if _, err := db.Exec("PRAGMA foreign_keys = on; PRAGMA journal_mode = wal;"); err != nil {
+		slog.Error("failed to set pragmas", "error", err)
+		db.Close()
+		return nil, err
+	}
+
+	if _, err := db.Exec(schema()); err != nil {
+		slog.Error("failed to initialize schema", "error", err)
+		db.Close()
+		return nil, err
+	}
+
+	slog.Info("created new blank DB with valid schema", "path", path)
+	return db, nil
+}
diff --git a/internal/tagging/tagging.go b/internal/tagging/tagging.go
new file mode 100644
index 0000000..8e8efe9
--- /dev/null
+++ b/internal/tagging/tagging.go
@@ -0,0 +1,23 @@
+package tagging
+
+import (
+	"context"
+	"log/slog"
+
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+	"github.com/ChausseBenjamin/rafta/internal/util"
+	"github.com/hashicorp/go-uuid"
+	"google.golang.org/grpc"
+)
+
+// gRPC interceptor to tag requests with a unique identifier
+func UnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+	id, err := uuid.GenerateUUID()
+	if err != nil {
+		slog.Error("Unable to generate UUID for request", logging.ErrKey, err)
+	}
+	ctx = context.WithValue(ctx, util.ReqIDKey, id)
+	slog.DebugContext(ctx, "Tagging request with UUID", "value", id)
+
+	return handler(ctx, req)
+}
diff --git a/internal/util/context.go b/internal/util/context.go
new file mode 100644
index 0000000..e7cbab2
--- /dev/null
+++ b/internal/util/context.go
@@ -0,0 +1,8 @@
+package util
+
+type ContextKey uint8
+
+const (
+	DBKey ContextKey = iota
+	ReqIDKey
+)
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..a9032a4
--- /dev/null
+++ b/main.go
@@ -0,0 +1,19 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"os"
+
+	"github.com/ChausseBenjamin/rafta/internal/app"
+	"github.com/ChausseBenjamin/rafta/internal/logging"
+)
+
+func main() {
+	cmd := app.Command()
+
+	if err := cmd.Run(context.Background(), os.Args); err != nil {
+		slog.Error("Program quit unexpectedly", logging.ErrKey, err)
+		os.Exit(1)
+	}
+}
diff --git a/resources/local_dev.sh b/resources/local_dev.sh
new file mode 100755
index 0000000..68bb46b
--- /dev/null
+++ b/resources/local_dev.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+env_vars=$(cat << EOF
+  LOG_LEVEL=debug
+  LOG_FORMAT=plain
+  LOG_OUTPUT=stdout
+  LISTEN_PORT=1234
+  DATABASE_PATH=runtime/store.db
+EOF
+)
+
+case "$1" in
+  --get-config)
+    echo "$env_vars"
+    ;;
+  *)
+    clear && env $env_vars go run . $@
+    ;;
+esac
diff --git a/resources/schema.proto b/resources/schema.proto
new file mode 100644
index 0000000..5b34332
--- /dev/null
+++ b/resources/schema.proto
@@ -0,0 +1,79 @@
+syntax = "proto3";
+
+import "protobuf/src/google/protobuf/empty.proto";
+import "protobuf/src/google/protobuf/timestamp.proto";
+
+option go_package = "github.com/ChausseBenjamin/rafta/internal/server/model";
+
+enum TaskState {
+  TASK_UNDEFINED = 0;
+  TASK_PENDING = 1;
+  TASK_IN_PROGRESS = 2;
+  TASK_DONE = 3;
+  TASK_BLOCKED = 4;
+}
+
+message UserID {
+  string uuid = 1;
+}
+
+message UserData {
+  string name = 1;
+  string email = 2;
+  google.protobuf.Timestamp created_on = 3;
+  google.protobuf.Timestamp last_login = 4;
+}
+
+message User {
+  UserID id = 1;
+  UserData data = 2;
+}
+
+message TaskID {
+  string uuid = 1;
+}
+
+message TaskData {
+  string title = 1;
+  Description desc = 2; // markdown
+  uint32 priority = 3;
+  TaskState state = 4;
+  google.protobuf.Timestamp created_on = 5;
+  google.protobuf.Timestamp last_updated = 6;
+  repeated string tags = 7;
+}
+
+message Description {
+  string data = 1;
+}
+
+message Task {
+  TaskID id = 1;
+  TaskData data = 2;
+}
+
+message TaskList {
+  repeated Task tasks = 1;
+}
+
+message UserList {
+  repeated User users = 1;
+}
+
+service Rafta {
+  // Retrieval
+  rpc GetUserTasks(UserID) returns (TaskList);
+  rpc GetAllUsers(google.protobuf.Empty) returns (UserList);
+  rpc GetUser(UserID) returns (User);
+  rpc GetTask(TaskID) returns (Task);
+
+  // Task Manipulation
+  rpc DeleteTask(TaskID) returns (google.protobuf.Empty);
+  rpc UpdateTask(Task) returns (Task);
+  rpc CreateTask(TaskData) returns (Task);
+
+  // User Manipulation
+  rpc DeleteUser(UserID) returns (google.protobuf.Empty);
+  rpc UpdateUser(User) returns (User);
+  rpc CreateUser(UserData) returns (User);
+}
diff --git a/runtime/.gitignore b/runtime/.gitignore
new file mode 100644
index 0000000..d6b7ef3
--- /dev/null
+++ b/runtime/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore